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• !
  • Logical Operators in Perl
• !=
  • != Not equal. Comparing values as numbers.
  • Comparing scalars in Perl
• !~
  • Introduction to Regexes in Perl 5
• "
  • Strings in Perl: quoted, interpolated and escaped
  • strings in double quotes
• #
  • Comments
• #!
  • The Hash-bang line, or how to make a Perl scripts executable on Linux
• $
  • $, the output field separator, and $" the list separator of Perl
  • How to extract strings from a file
  • Installing and getting started with Perl
  • Scalar values and variables
  • Scalar variables
• $!
  • $!
  • No such file
• $"
  • $"
  • $, the output field separator, and $" the list separator of Perl
• $#
  • $#
  • Array references in Perl
  • Perl Arrays
• $#$
  • Array references in Perl
• $#array
  • Array indexes
  • Array indexes (screencast)
• $$
  • $$
  • $$ - The process number of the current script / program / executable.
• $%
  • $%
  • $% - $FORMAT_PAGE_NUMBER - The current page number of the currently selected output channel.
• $&
  • $&
• $'
  • $'
• $(
  • $(
• $()
  • Show number of files in several directory trees using Shell
• $)
  • $)
• $*
  • $*
• $+
  • $+
• $,
  • $,
• $-
  • $-
• $.
  • $.
• $/
  • $/
  • Chomp and $/, the Input Record Separator
  • How to replace a string in a file with Perl
  • slurp mode - reading a file in one step
• $0
  • $0
  • $0 - $PROGRAM_NAME - The name of the program (script) being executed.
  • Command line parameters
  • Command line parameters (screencast)
  • How to create a Perl Module for code reuse?
  • Processing command line arguments - @ARGV in Perl
• $1
  • $1
  • $1
• $2
  • $2
• $3
  • $3
• $4
  • $4
• $5
  • $5
• $:
  • $:
• $;
  • $;
• $<
  • $<
• $=
  • $=
• $>
  • $>
• $?
  • $?
  • How to exit from a Perl script?
• $@
  • $@
  • Echo server with logging and timeout
  • Exception handling in Perl: How to deal with fatal errors in external modules
• $[
  • $[
  • $[ - This variable stores the index of the first element in an array, and of the first character in a substring. This was a bad idea to expose. You should not change it!
• $\
  • $\
• $]
  • $]
• $^
  • $^
• $^A
  • $^A
• $^C
  • $^C
• $^D
  • $^D
• $^E
  • $^E
• $^F
  • $^F
• $^H
  • $^H
• $^I
  • $^I
• $^L
  • $^L
• $^M
  • $^M
• $^N
  • $^N
• $^O
  • $^O
• $^P
  • $^P
• $^R
  • $^R
• $^S
  • $^S
• $^T
  • $^T
• $^V
  • $^V
• $^W
  • $^W
• $^X
  • $^X
• $_
  • $_
  • $_ the default variable of Perl
  • Perl split - to cut up a string into pieces
  • The diamond operator <> of Perl
• $_[0]
  • Constructor and accessors in classic Perl OOP
  • Subroutines and functions in Perl
• $`
  • $`
• $a
  • $a
  • $a - $b - Special variables when using sort(). Don't use them for anything else besides your sort function!
  • Don't use $a and $b outside of sort, not even for examples
  • How to sort a hash in Perl?
  • How to sort a hash of hashes by value?
  • Sorting arrays in Perl
  • Sorting mixed strings
• $ACCUMULATOR
  • $ACCUMULATOR
• $ARG
  • $ARG
• $ARGV
  • $ARGV
• $ARGV[0]
  • Command line parameters
  • Command line parameters (screencast)
• $ARGV[]
  • Processing command line arguments - @ARGV in Perl
• $array[1]
  • Array indexes
  • Array indexes (screencast)
• $b
  • $a - $b - Special variables when using sort(). Don't use them for anything else besides your sort function!
  • $b
  • Don't use $a and $b outside of sort, not even for examples
  • How to sort a hash in Perl?
  • How to sort a hash of hashes by value?
  • Sorting arrays in Perl
  • Sorting mixed strings
• $BASETIME
  • $BASETIME
• $Bin
  • How to add a relative directory to @INC
  • The 19 most important file-system tools in Perl 5
• $CHILD_ERROR
  • $CHILD_ERROR
• $COMPILING
  • $COMPILING
• $count[$c]++
  • Count digits
• $count{$word}++
  • Counting words in a file
• $DEBUGGING
  • $DEBUGGING
• $EFFECTIVE_GROUP_ID
  • $EFFECTIVE_GROUP_ID
• $EFFECTIVE_USER_ID
  • $EFFECTIVE_USER_ID
• $EGID
  • $EGID
• $ERRNO
  • $ERRNO
• $EUID
  • $EUID
  • $EUID - $> - The effective uid of this process.
• $EVAL_ERROR
  • $EVAL_ERROR
• $EXCEPTIONS_BEING_CAUGHT
  • $EXCEPTIONS_BEING_CAUGHT
• $EXECUTABLE_NAME
  • $EXECUTABLE_NAME
• $EXTENDED_OS_ERROR
  • $EXTENDED_OS_ERROR
• $filter
  • Filters in AngularJS
• $FORMAT_FORMFEED
  • $FORMAT_FORMFEED
• $FORMAT_LINE_BREAK_CHARACTERS
  • $FORMAT_LINE_BREAK_CHARACTERS
• $FORMAT_LINES_LEFT
  • $FORMAT_LINES_LEFT
• $FORMAT_LINES_PER_PAGE
  • $FORMAT_LINES_PER_PAGE
• $FORMAT_NAME
  • $FORMAT_NAME
• $FORMAT_PAGE_NUMBER
  • $FORMAT_PAGE_NUMBER
• $FORMAT_TOP_NAME
  • $FORMAT_TOP_NAME
• $GID
  • $GID
• $INPLACE_EDIT
  • $INPLACE_EDIT
• $INPUT_LINE_NUMBER
  • $INPUT_LINE_NUMBER
• $INPUT_RECORD_SEPARATOR
  • $INPUT_RECORD_SEPARATOR
  • Chomp and $/, the Input Record Separator
  • How to replace a string in a file with Perl
  • slurp mode - reading a file in one step
• $LAST_PAREN_MATCH
  • $LAST_PAREN_MATCH
• $LAST_REGEXP_CODE_RESULT
  • $LAST_REGEXP_CODE_RESULT
• $LAST_SUBMATCH_RESULT
  • $LAST_SUBMATCH_RESULT
• $LIST_SEPARATOR
  • $, the output field separator, and $" the list separator of Perl
  • $LIST_SEPARATOR
• $log
  • Logging in AngularJS applications
• $logProvider
  • Logging in AngularJS applications
• $MATCH
  • $MATCH
• $NR
  • $NR
• $OFS
  • $, the output field separator, and $" the list separator of Perl
• $ORS
  • $ORS
• $OS_ERROR
  • $OS_ERROR
• $OSNAME
  • $OSNAME
• $OUTPUT_AUTOFLUSH
  • $OUTPUT_AUTOFLUSH
• $OUTPUT_FIELD_SEPARATOR
  • $, the output field separator, and $" the list separator of Perl
  • $OUTPUT_FIELD_SEPARATOR
• $OUTPUT_RECORD_SEPARATOR
  • $OUTPUT_RECORD_SEPARATOR
• $PERL_VERSION
  • $PERL_VERSION
• $PERLDB
  • $PERLDB
• $PID
  • $PID
• $POSTMATCH
  • $POSTMATCH
• $PREMATCH
  • $PREMATCH
• $PROCESS_ID
  • $PROCESS_ID
• $PROGRAM_NAME
  • $PROGRAM_NAME
• $REAL_GROUP_ID
  • $REAL_GROUP_ID
• $REAL_USER_ID
  • $REAL_USER_ID
• $RS
  • $RS
  • Chomp and $/, the Input Record Separator
  • slurp mode - reading a file in one step
• $self
  • Inheritance and Method Modifiers in Moo
  • Methods, Functions and Subroutines in Perl and what is $self ?
  • Public and Private Methods in Moo-based Object Oriented Perl
• $SIG{}
  • How to capture and save warnings in Perl
• $SUBSCRIPT_SEPARATOR
  • $SUBSCRIPT_SEPARATOR
• $SUBSEP
  • $SUBSEP
• $SYSTEM_FD_MAX
  • $SYSTEM_FD_MAX
• $UID
  • $UID
• $VAR1
  • Debugging Perl scripts
• $VAR2
  • Debugging Perl scripts
• $VERSION
  • Enforce the same version numbers in all the Perl modules in a distribution
  • How to compare version numbers in Perl and for CPAN modules
  • Perl::Version vs version confusion
• $WARNING
  • $WARNING
• ${^CHILD_ERROR_NATIVE}
  • ${^CHILD_ERROR_NATIVE}
• ${^ENCODING}
  • ${^ENCODING}
• ${^GLOBAL_PHASE}
  • ${^GLOBAL_PHASE}
• ${^LAST_FH}
  • ${^LAST_FH}
• ${^MATCH}
  • ${^MATCH}
• ${^OPEN}
  • ${^OPEN}
• ${^POSTMATCH}
  • ${^POSTMATCH}
• ${^PREMATCH}
  • ${^PREMATCH}
• ${^RE_DEBUG_FLAGS}
  • ${^RE_DEBUG_FLAGS}
• ${^RE_TRIE_MAXBUF}
  • ${^RE_TRIE_MAXBUF}
• ${^TAINT}
  • ${^TAINT}
• ${^UNICODE}
  • ${^UNICODE}
• ${^UTF8CACHE}
  • ${^UTF8CACHE}
• ${^UTF8LOCALE}
  • ${^UTF8LOCALE}
• ${^WARNING_BITS}
  • ${^WARNING_BITS}
• ${^WIN32_SLOPPY_STAT}
  • ${^WIN32_SLOPPY_STAT}
• $|
  • $|
  • $| - $OUTPUT_AUTOFLUSH - If set to nonzero, forces a flush right away and after every write or print on the currently selected output channel. Default is 0.
  • Standard output, standard error and command line redirection
  • Use of uninitialized value
• $~
  • $~
• %
  • A hash and its uses
  • Creating a hash
  • Creating a hash from an array
  • Exercise: improve Apache log analyzer
  • Exercise: improve color selector
  • Exercise: parse HTTP values
  • Exercise: parse variable width fields
  • Exercise: sort scores
  • Fetching data from a hash
  • Hashes in Perl
  • Numerical Operators
  • Numerical operators
  • Scalar variables
  • Solution: improve Apache log-analyzer
  • Solution: improve color selector
  • Solution: parse HTTP values
  • Solution: parse variable width fields
  • Solution: sort scores
  • hash in SCALAR context
• %!
  • %!
• %+
  • %+
• %-
  • %-
• %=
  • Numerical operators
• %ENV
  • %ENV
  • Echo with plain CGI
• %ERRNO
  • %ERRNO
• %INC
  • %INC
  • Which Perl modules are loaded in memory?
• %LAST_MATCH_START
  • %LAST_MATCH_START
• %LAST_PAREN_MATCH
  • %LAST_PAREN_MATCH
• %OS_ERROR
  • %OS_ERROR
• %SIG
  • %SIG
  • Echo server with logging and timeout
  • How to capture and save warnings in Perl
• &
  • Don't put & in-front of subroutines in Perl
  • Memoization - speeding up function calls by caching of return values
• &&
  • Logical Operators in Perl
• '
  • Strings in Perl: quoted, interpolated and escaped
  • strings in single quotes
• (
  • How to extract strings from a file
• ()
  • List assignment
  • Lists in Perl
  • Regex Capturing
• *
  • Matching numbers using Perl regex
  • Numerical Operators
  • Numerical operators
  • Perl 5 Regex Cheat sheet
  • Perl 5 Regex Quantifiers
• **
  • **
• *=
  • Numerical operators
• *?
  • Minimal Regex Matching
• *{}
  • Memoization - speeding up function calls by caching of return values
• +
  • Matching numbers using Perl regex
  • Numerical Operators
  • Numerical operators
  • Perl 5 Regex Cheat sheet
  • Perl 5 Regex Quantifiers
  • Scalar variables
  • The magic unary plus (+)
• ++
  • ++
  • Command line counter with plain text file back-end
  • Numerical operators
  • String operators: concatenation (.), repetition (x)
• +<
  • Open file all
• +=
  • Numerical operators
• +?
  • Minimal Regex Matching
• -
  • Numerical Operators
  • Numerical operators
  • Regex character classes
• --
  • --
  • Numerical operators
• -=
  • Numerical operators
• ->
  • ->
  • Getting started with Classic Perl OOP
• -A
  • -A
• -a
  • One-liner sum of column in CSV
• -b
  • -b
• -B
  • -B
• -C
  • -C
• -c
  • -c
• -d
  • -d
  • Debug sum numbers
  • Debugging Perl scripts
  • Debugging Perl scripts
  • Debugging Perl with hdb
  • Using the built-in debugger of Perl
  • Using the built-in debugger of Perl as REPL
• -E
  • Perl on the command line (screencast)
• -e
  • -e
  • One-liner sum of column in CSV
  • Perl on the command line
  • Perl on the command line (screencast)
• -f
  • -f
• -F
  • One-liner sum of column in CSV
• -g
  • -g
• -I
  • Changing @INC
  • How to change @INC to find Perl modules in non-standard locations
• -i
  • Perl on the command line
• -k
  • -k
• -l
  • -l
  • Modules - Behind the scenes
• -M
  • -M
• -m
  • Modules - Behind the scenes
• -maxdepth
  • Show number of files in several directory trees using Shell
• -mindepth
  • Show number of files in several directory trees using Shell
• -n
  • One-liner sum of column in CSV
• -O
  • -O
• -o
  • -o
• -p
  • -p
  • Perl on the command line
• -r
  • -r
• -R
  • -R
• -S
  • -S
• -s
  • -s
  • How to get the size of a file in Perl
• -t
  • -t
  • The Hash-bang line, or how to make a Perl scripts executable on Linux
• -T
  • -T
  • The Hash-bang line, or how to make a Perl scripts executable on Linux
• -u
  • -u
• -v
  • Perl on the command line
  • Perl on the command line (screencast)
• -V
  • How does require find the module to be loaded?
  • Perl on the command line (screencast)
• -W
  • -W
• -w
  • -w
  • The Hash-bang line, or how to make a Perl scripts executable on Linux
  • The problem with libraries
• -X
  • -X
  • -X
• -x
  • -x
• -z
  • -z
• .
• .gitignore
• .hgignore
• /
  • Numerical Operators
  • Numerical operators
  • Understanding dates using regular expressions
• //
  • How to set default values in Perl
  • Introduction to Regexes in Perl 5
  • Logical Operators in Perl
  • What's new in Perl 5.10? say, //, state
• //=
  • How to set default values in Perl
  • What's new in Perl 5.10? say, //, state
• /=
  • Numerical operators
• /dev/null
  • Standard output, standard error and command line redirection
• /g
  • Checking the whois record of many domains
  • Count the frequency of words in text using Perl
  • Here documents, or how to create multi-line strings in Perl
  • How to extract strings from a file
• /m
  • Checking the whois record of many domains
  • Here documents, or how to create multi-line strings in Perl
• /usr/bin/perl
  • The Hash-bang line, or how to make a Perl scripts executable on Linux
• 1;
  • How to create a Perl Module for code reuse?
• 404
  • Add "404 Not Found" page
• 5.010
  • Smart Matching in Perl 5.10
  • What's new in Perl 5.10? say, //, state
• ::
  • Namespaces and packages
• ;
  • Unknown warnings category
  • Your first script: Hello world
• <
  • < Less than. Comparing values as numbers.
  • Compare Values
  • Comparing scalars in Perl
  • Comparison Operators
  • Open and read from text files
  • Open file all
• <$fh>
  • Filehandle in SCALAR and LIST context
  • Open and read from text files
  • Read file line by line
  • read one line
• <<
  • Bare Here documents are deprecated - How to find offending code?
  • Here documents
  • Here documents, or how to create multi-line strings in Perl
• <=
  • <= Less than or equal. Comparing values as numbers.
  • Comparing scalars in Perl
  • Comparison Operators
• <=>
  • How to sort a hash in Perl?
  • How to sort a hash of hashes by value?
  • Sorting arrays in Perl
  • Sorting mixed strings
• <>
  • File globbing
  • Filtering values using Perl grep
  • The diamond operator <> of Perl
• • Installing and getting started with Perl
  • STDIN in scalar and list context
  • Variable interpolation - User Input and Output - chomp
• =!
  • An extra space can ruin your day
• ==
  • == Compare if two numbers are equal
  • Compare Values
  • Comparing scalars in Perl
• =>
  • => Fat arrow (or fat comma), a fancy way to write a comma ','. Especially used in key-value pairs.
  • Hashes in Perl
• =cut
  • POD - Plain Old Documentation
• =head1
  • POD - Plain Old Documentation
• =head2
  • POD - Plain Old Documentation
• =pod
  • POD - Plain Old Documentation
• =~
  • Introduction to Regexes in Perl 5
• >
  • > Greater than. Comparing values as numbers.
  • Compare Values
  • Comparing scalars in Perl
  • Comparison Operators
  • Open file all
  • Write to file
  • Writing to files with Perl
• >=
  • >= Greater than or equal. Comparing values as numbers.
  • Comparing scalars in Perl
  • Comparison Operators
• >>
  • Appending to files
  • How to exit from a Perl script?
  • How to merge one text file to the end of another text file?
  • Open file all
• ?
  • Minimal Regex Matching
  • Perl 5 Regex Cheat sheet
  • Perl 5 Regex Quantifiers
  • Understanding dates using regular expressions
• ?:
  • How to extract strings from a file
  • The Ternary operator
  • The ternary operator in Perl
• ??
  • Minimal Regex Matching
• @
  • Array references in Perl
  • Perl Arrays
  • Scalar variables
• @+
  • @+
• @-
  • @-
• @_
  • @_
  • Constructor and accessors in classic Perl OOP
  • Passing two arrays to a function
  • Subroutines and functions in Perl
  • Variable number of parameters in Perl subroutines
  • shift in Perl
• @ARG
  • @ARG
• @ARGV
  • @ARGV
  • Command line parameters
  • Command line parameters (screencast)
  • How to process command line arguments in Perl using Getopt::Long
  • Processing command line arguments - @ARGV in Perl
  • shift in Perl
• @array
  • Array assignment
  • Creating an array
• @array[]
  • How to get a slice of an array or an array reference?
• @EXPORT
  • Exporting and importing functions easily
  • Import on demand
• @EXPORT_OK
  • How to create a Perl Module for code reuse?
  • Import on demand
• @F
  • @F
• @hash{...}
  • How to get a slice of a hash?
• @INC
  • @INC
  • Can't locate ... in @INC
  • Changing @INC
  • Changing @INC relative path
  • How does require find the module to be loaded?
  • How to add a relative directory to @INC
  • How to change @INC to find Perl modules in non-standard locations
  • How to create a Perl Module for code reuse?
  • Which Perl modules are loaded in memory?
• @ISA
  • OOP - Object Oriented Perl
• @LAST_MATCH_END
  • @LAST_MATCH_END
• @LAST_MATCH_START
  • @LAST_MATCH_START
• @{ }
  • Array references in Perl
• []
  • Matching numbers using Perl regex
  • Perl 5 Regex Cheat sheet
  • Regex character classes
  • Regex: special character classes
• \
  • Passing two arrays to a function
  • Strings in Perl: quoted, interpolated and escaped
  • Understanding dates using regular expressions
• \&
  • Memoization - speeding up function calls by caching of return values
• \@
  • Array references in Perl
• \D
  • Regex: special character classes
• \d
  • Regex: special character classes
• \n
  • Your first script: Hello world
• \p
  • Regex: special character classes
• \P
  • Regex: special character classes
• \p{Uppercase}
  • How to check if a string is all upper case (lower case) characters?
• \S
  • Regex: special character classes
• \s
  • How to check if string is empty or has only spaces in it using Perl?
  • How to extract strings from a file
  • Regex: special character classes
• \t
  • Multiple command line counters with plain TSV text file back-end
• \w
  • Regex: special character classes
• \W
  • Regex: special character classes
• ^
  • How to extract strings from a file
  • Matching numbers using Perl regex
• __DATA__
• __DIR__
• __END__
• __FILE__
• __LINE__
• __PACKAGE__
• __SUB__
• __WARN__
• ``
  • Show number of files in several directory trees using Shell
• abs
  • abs
• abs_path
  • How to create a Perl Module for code reuse?
• accept
  • accept
• Access-Control-Allow-Methods
  • Deleting item using Ajax request with DELETE and OPTIONS
• Access-Control-Allow-Origin
  • Stand-alone Ajax client and the Access-Control-Allow-Origin issue
• accessor
  • Attribute types in Perl classes when using Moose
  • Core Perl OOP: attributes, getter - setter
  • Object Oriented Perl using Moose
• ActivePerl
  • Download and install Perl
  • Installing a Perl Module from CPAN on Windows, Linux and Mac OSX
• ActiveState
  • Welcome and Installation
• Additive Operators
  • Additive Operators
• adduser
  • Create Linux user account
• advanced
  • Introduction to the Advanced Perl course
• after
  • Inheritance and Method Modifiers in Moo
• Ajax
  • Add and retrieve elements - jQuery + Ajax
  • Ajax and Dancer 2
  • How does the world wide web work?
  • PSGI and AJAX for single-page applications
• alarm
  • Echo server with logging and timeout
  • alarm
• all
  • Check several regexes on many strings
  • Does the 'all' function of List::MoreUtils really short-circuit?
• ALRM
  • Echo server with logging and timeout
• and
  • Logical Operators in Perl
• AngularJS
  • Single Page Application with Perl Dancer and AngularJS
• any
  • Creating a testing module
  • Filtering values using Perl grep
  • Testing a tree data structure in Perl
• AnyEvent
  • Anyevent, asynchronous programming
  • Asynchronous web application with PSGI and Twiggy
  • Fetching several web pages in parallel using AnyEvent
• Apache
  • Analyze Apache log file
• Apache2
  • Perl/CGI script with Apache2
• ApacheBench
  • Concurrent Requests and measuring performance with ApacheBench
• App::cpanminus
  • Install Perl modules without root rights on Linux Ubuntu 13.10 x64
• append
  • Appending to files
  • How to merge one text file to the end of another text file?
• append_utf8
  • use Path::Tiny to read and write file
• application
  • Processing config file
• aptitude
  • Installing modules from the OS vendor
• argc
  • Processing command line arguments - @ARGV in Perl
• ARGV
  • ARGV
• ARGVOUT
  • ARGVOUT
• around
  • Inheritance and Method Modifiers in Moo
• ARRAY
  • Multi dimensional arrays in Perl
  • Passing two arrays to a function
  • ref - What kind of reference is this variable?
• array
  • How to eliminate a value in the middle of an array in Perl?
  • Manipulating Perl arrays: shift, unshift, push, pop
  • Perl Arrays
  • Scalar and List context in Perl, the size of an array
  • Splice to slice and dice arrays in Perl
  • Transforming a Perl array using map
  • Unique values in an array in Perl
  • Unique values in an array reference in Perl
  • Using a queue in Perl
• Array Interpolation
  • Array Interpolation
• ARRAY(0x703dcf2)
  • Array references in Perl
• array_each
  • Testing a tree data structure in Perl
  • Use of uninitialized value $got in pattern match (m//) at Test/Deep/Regexp.pm line 57.
• arrays
  • Perl Arrays
• ASCII
  • What is a text file and what is a binary file?
• Assignment Operators
  • Assignment Operators
• associative
  • Hashes in Perl
• atan2
  • atan2
• attribute
  • Attribute types in Perl classes when using Moose
  • Core Perl OOP: attributes, getter - setter
• Auto-increment and Auto-decrement
  • Auto-increment and Auto-decrement
• AUTOLOAD
  • AUTOLOAD - handling Undefined subroutines
• autovivification
  • What is autovivification?
• B::Deparse
  • An extra space can ruin your day
  • Bug in the for-loop of Perl? - B::Deparse to the rescue
  • Can't call method ... on unblessed reference
  • Possible precedence issue with control flow operator
  • The magic unary plus (+)
• bar
  • Acme::MetaSyntactic or how to get rid of foo and bar?
• bareword
  • Barewords in Perl
• Barewords
  • Barewords
• base
  • OOP - Object Oriented Perl
• basename
  • More UNIX commands
• Bash
  • Bash - shell scripting examples
• before
  • Inheritance and Method Modifiers in Moo
  • Refactoring Dancer 2 app, using before hook
• BEGIN
  • BEGIN
  • BEGIN block - running code during compilation
  • Changing @INC
  • Test without a Plan
  • What is the difference between require and use? What does import do?
• Benchmark
  • Benchmark: Refactoring MD5 calculation in Rex
  • Comparing the speed of JSON decoders
• Bigger Numbers
  • Bigger Numbers
• bind
  • bind
• Binding Operators
  • Binding Operators
• binmode
  • How to create an Indian Rupee symbol with Perl code
  • binmode
• bitwise
  • Avoid (unwanted) bitwise operators
• Bitwise And
  • Bitwise And
• Bitwise Or and Exclusive Or
  • Bitwise Or and Exclusive Or
• Bitwise String Operators
  • Bitwise String Operators
• bless
  • Constructor and accessors in classic Perl OOP
  • Core Perl OOP: Constructor
  • Getting started with Classic Perl OOP
  • OOP - Object Oriented Perl
  • bless
• blessed
  • Class method and alternative constructor in classic Perl OOP
  • Stringification in classic Perl OOP
• Blio
  • Building a static blog using Blio and Github
• blog
  • Blogging with Riji
  • Building a static blog using Blio and Github
• boolean
  • Boolean values in Perl
• break
  • break
• buffering
  • Standard output, standard error and command line redirection
  • Use of uninitialized value
• Bugzilla
  • 10: Dave Miller, the leader of the Bugzilla project
• Build
  • Packaging with Build.PL
• Build.PL
  • Distribution directory layout
  • Packaging with Build.PL
• BUILDARGS
  • Replacing an accessor by a method (using BUILDARGS)
• builder
  • Serving static files such as favicon.ico and robots.txt using Plack
• C Operators Missing From Perl
  • C Operators Missing From Perl
• C-style Logical And
  • C-style Logical And
• C-style Logical Or
  • C-style Logical Or
• Cache
  • Caching data using the Cache module
• Cache::File
  • Caching data using the Cache module
• caller
  • caller
• CAM::PDF
  • Parsing tables in PDF files
• case
  • Switch-Case statement in Perl 5
  • Switching in Perl 5.10
• casting
  • Automatic string to number conversion or casting in Perl
• cat
  • How to merge one text file to the end of another text file?
  • The diamond operator <> of Perl
• Catalyst
  • Catalyst, the MVC Perl web framework
  • Modern Web with Perl
• Catalyst::Plugin
  • Finding all Plack Middleware or Perl::Critic Policies
• catdir
  • How to add a relative directory to @INC
  • The 19 most important file-system tools in Perl 5
• catfile
  • Changing @INC relative path
  • The 19 most important file-system tools in Perl 5
• CGI
  • CGI - Common Gateway Interface
  • Echo with plain CGI
  • Hello World with plain CGI
  • Modern Web with Perl
  • Perl/CGI script with Apache2
  • Simple CGI Perl script to send form by e-mail
  • Which is better perl-CGI, mod_perl or PSGI?
• cgi-bin
  • CGI - Common Gateway Interface
• CGI::Simple
  • Echo with plain CGI
  • Hello World with plain CGI
• Chad Granum
  • 8: Chad (Exodist) Granum, author of the Fennec testing tool
• Changes
  • Changes and README
• chat server
  • Chat server using Net::Server
• chdir
  • Unix and DOS commands
  • chdir
• CHECK
  • CHECK
  • CHECK
• chmod
  • Unix and DOS commands
  • chmod
• chomp
  • Chomp and $/, the Input Record Separator
  • Installing and getting started with Perl
  • Prompt, read from STDIN, read from the keyboard in Perl
  • Variable interpolation - User Input and Output - chomp
  • chomp
• chop
  • How to get the last character of a string in Perl?
  • chop
• chown
  • Unix and DOS commands
  • chown
• chr
  • chr
• chroot
  • chroot
• CIDR
  • Is this IP in the given subnet?
• Citrus Perl
  • Download and install Perl
• class
  • Attribute types in Perl classes when using Moose
  • Object Oriented Perl using Moose
• Class::Accessor
  • Memory usage and load time of Moose, Moo, and Class::Accessor
• clearer
  • Moo attribute predicate and clearer
• close
  • How to replace a string in a file with Perl
  • Writing to files with Perl
  • close
• closedir
  • Reading the content of a directory
  • closedir
• cmp
  • How to sort a hash in Perl?
  • How to sort a hash of hashes by value?
  • Sorting arrays in Perl
  • Sorting mixed strings
• cmp_deeply
  • Keep data in client and fetch only changes
• cmp_ok
  • Multiple expected values - testing dice
  • Testing timeout with cmp_ok
• CODE
  • ref - What kind of reference is this variable?
• Code::TidyAll
  • Run Perl::Tidy to beautify the code
• coerce
  • Moose: coerce value to a subtype
• Comma Operator
  • Comma Operator
• Compatibility::PerlMinimumVersionAndWhy
  • Set minimum version number in every Perl file
  • Three-argument form of open used and it is not available until perl 5.6.
• Compatibility::ProhibitThreeArgumentOpen
  • Three-argument form of open used and it is not available until perl 5.6.
• Conditional Operator
  • Conditional Operator
• config
  • Add and retrieve items - MongoDB, Dancer and Testing!
• Config::Tiny
  • Cloud automation at Digital Ocean using Perl
  • Using Twitter, sending Tweets from a Perl script
• connect
  • connect
• console.log
  • Logging in AngularJS applications
• constant
  • Constants and read-only variables in Perl
• Constant Folding
  • Constant Folding
• CONSTRUCT
  • CONSTRUCT
• constructor
  • Attribute types in Perl classes when using Moose
  • Moose constructor
  • Moose testing type constraint
  • Object Oriented Perl using Moose
• Content-type
  • Hello World with plain CGI
• context
  • Can't locate object method "..." via package "1" (perhaps you forgot to load "1"?)
  • Scalar and List context in Perl, the size of an array
  • What are string and numeric contexts?
• Context
  • Context
• continue
  • The diamond operator <> of Perl
  • continue
• contributors
  • Adding list of contributors to the CPAN META files
• copy
  • How to remove, copy or rename a file with Perl
  • More UNIX commands
• cos
  • cos
• cp
  • How to remove, copy or rename a file with Perl
• cpan
  • CPAN Testers and CPAN Ratings
  • How to install Perl modules on FreeBSD
  • Installing Perl modules using cpan
  • Pinto -- A Custom CPAN In A Box
  • Some interesting CPAN modules
  • Using procedural Perl modules
  • What is CPAN?
• CPAN
  • 20 most popular Perl modules
  • 2015 CPAN Pull Request Challenge
  • CPAN for older versions of Perl
  • Contributing to a Perl module on CPAN (using vim and GitHub)
  • Contributing to the Open Source Perl Ecosystem
  • Core Perl documentation and CPAN module documentation
  • Fetching META data from Meta CPAN
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
  • How to download a Perl module from CPAN
  • How to fetch the CPAN dependency tree of a Perl module?
  • Installing a Perl Module from CPAN on Windows, Linux and Mac OSX
  • List all the Perl modules and distributions in a name-space using Meta CPAN
  • Minimal requirement to build a sane CPAN package
  • Monitoring the most recent uploads to CPAN
  • What you need to know about CPAN
  • search.cpan.org
• CPAN Testers
  • MetaCPAN and the CPAN Testers
• CPAN::Meta::Spec
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
• Cpanel::JSON::XS
  • Command line counter with JSON backend
  • Comparing the speed of JSON decoders
  • JSON in Perl
• cpanm
  • How to install Perl modules on FreeBSD
  • Install Perl modules without root rights on Linux Ubuntu 13.10 x64
  • Installing a Perl Module from CPAN on Windows, Linux and Mac OSX
• CPANTS
  • Improve Kwalitee (Pod::Tree 1.25)
• cpxxxan
  • CPAN for older versions of Perl
• cron
  • Get CPANstats from MetaCPAN using cron
  • How to run a Perl script automatically every N hours
• crypt
  • Storing Password in an easy and secure way using Perl
  • crypt
• Crypt::DH
  • Net::SSH::Perl - Login Hang Resolved!
• Crypt::PBKDF2
  • Storing Password in an easy and secure way using Perl
• Crypt::Random
  • Generate random numbers in Perl with the rand() function
• Crypt::SSLeay
  • Crypt::SSLeay - 500 Can't connect to ____ (Crypt-SSLeay can't verify hostnames)
  • Crypt::SSLeay and HTTPS_PROXY Problem
• CSV
  • Calculating bank balance, take two: DBD::CSV
  • How to calculate the balance of bank accounts in a CSV file, using Perl?
  • How to read a CSV file using Perl?
  • Multiple command line counters with plain TSV text file back-end
  • One-liner sum of column in CSV
  • Process CSV file
  • Process CSV file short version
  • Process CSV file using Text::CSV_XS
  • Split CSV file into multiple small CSV files
• curl
  • A Simple way to download many web pages using Perl
• cwd
  • Current working directory in Perl
  • The 19 most important file-system tools in Perl 5
• Cwd
  • Current working directory in Perl
  • How to create a Perl Module for code reuse?
  • More UNIX commands
  • The 19 most important file-system tools in Perl 5
• Dancer
  • Building a blog engine using Perl Dancer
  • Counter with Dancer Sessions
  • Dancer, the light-weight Perl web framework
  • Getting started with Perl Dancer - Creating an Echo application
  • Getting started with Perl Dancer on Digital Ocean
  • Migrating (the Perl Maven site) from Dancer 1 to Dancer2
  • Modern Web with Perl
• dancer2
  • Hello World with Dancer2
• Dancer2
  • Add and retrieve items - MongoDB, Dancer and Testing!
  • Ajax and Dancer 2
  • Hello World with Dancer2
  • Migrating (the Perl Maven site) from Dancer 1 to Dancer2
  • Password protecting web pages in Dancer 2
  • Silencing the noisy Dancer tests
  • Single Page Application with Perl Dancer and AngularJS
• Dancer2::Core::Request::Upload
  • Uploading files using Dancer
• Dancer2::Plugin
  • Finding all Plack Middleware or Perl::Critic Policies
• Dancer2::Plugin::Auth::Extensible
  • Password protecting web pages in Dancer 2
• Dancer::Plugin
  • Finding all Plack Middleware or Perl::Critic Policies
• DATA
  • Check several regexes on many strings
• Data::Dumper
  • Array references in Perl
  • Data Serialization in Perl
  • Debugging Perl scripts
  • Dumping a hash
  • Multi dimensional arrays in Perl
  • Multi dimensional hashes in Perl
  • Perl Arrays
• Data::Dumper::Sortkeys
  • Caching data using the Cache module
• Data::Entropy
  • Generate random numbers in Perl with the rand() function
• Data::Serializer
  • Data Serialization in Perl
• DateTime
  • 3: Dave Rolsky, author of DateTime and tons of other modules
  • Classes as constraints in Moose
  • Common DateTime operations
  • The year of 19100
• DateTime::Duration
  • Common DateTime operations
• DateTime::Event::Cron
  • How to install Perl modules on FreeBSD
• DateTime::Format::Duration
  • Common DateTime operations
• DateTime::Format::ISO8601
  • Common DateTime operations
• DateTime::Format::Strptime
  • Common DateTime operations
• DateTime::Tiny
  • Add a date stamp to the items in the database
• Dave Miller
  • 10: Dave Miller, the leader of the Bugzilla project
• Dave Rolsky
  • 3: Dave Rolsky, author of DateTime and tons of other modules
• DBD
  • DBI - Database Independent Interface for Perl
• DBD::CSV
  • Calculating bank balance, take two: DBD::CSV
• DBD::Oracle
  • ORA-03124: two-task internal error (DBD ERROR: OCIStmtExecute)
  • Segmentation Fault (core dumped) while connecting to Oracle using DBD::Oracle
• DBD::SQLite
  • A command line counter with database back-end using DBIx::Class
  • Process status in SQLite
  • Simple Database access using Perl DBI and SQL
• DBI
  • Calculating bank balance, take two: DBD::CSV
  • DBI - Database Independent Interface for Perl
  • Segmentation Fault (core dumped) while connecting to Oracle using DBD::Oracle
  • Simple Database access using Perl DBI and SQL
• DBIC
  • A command line counter with database back-end using DBIx::Class
• DBIx::Class
  • A command line counter with database back-end using DBIx::Class
• dbmclose
  • dbmclose
• dbmopen
  • dbmopen
• DCI
  • 8: Chad (Exodist) Granum, author of the Fennec testing tool
• DDG
  • Neat trick to jump from search.cpan.org to metacpan.org
• debug
  • Debugging Perl scripts
  • Using the built-in debugger of Perl
• debugger
  • Using the built-in debugger of Perl
• debugging
  • Debugging Perl scripts
• declaration
  • Variable declaration in Perl
• decode_json
  • JSON in Perl
• default
  • $_ the default variable of Perl
  • Moo attributes with default values
• defined
  • defined
  • undef on Perl arrays and hashes
  • undef, the initial value and the defined function of Perl
• defined or
  • What's new in Perl 5.10? say, //, state
• del
  • How to remove, copy or rename a file with Perl
• DELETE
  • Deleting item using Ajax request with DELETE and OPTIONS
• delete
  • How to eliminate a value in the middle of an array in Perl?
  • How to remove, copy or rename a file with Perl
  • Updating MongoDB using Perl
  • delete
  • exists, delete in hash
  • undef on Perl arrays and hashes
• dependencies
  • How to fetch the CPAN dependency tree of a Perl module?
• DESCRIPTION
  • Packaging a script and a module
• DESTRUCT
  • DESTRUCT
• Devel::Cover
  • Check test coverage - add compile tests
• Devel::hdb
  • Debugging Perl with hdb
• Devel::NYTProf
  • Profiling and 100 times speed improvement
• Devel::Size
  • How much memory do Perl variables use?
• DevOps
  • Levels of security using (R)?ex
• df
  • Diskspace usage: df in Perl
• dfportable
  • Diskspace usage: df in Perl
• diag
  • Test diagnostic messages using diag, note, and explain
• diagnostics
  • Safety net (use strict; use warnings;)
  • use diagnostic; or use splain
  • use strict; and warnings; but no diagnostics
• die
  • Open and read from text files
  • Open or die
  • What does die do?
  • Writing to files with Perl
  • die
• die warn exit
  • die, warn, exit
• Digest::MD5
  • Storing Password in an easy and secure way using Perl
• Digest::SHA
  • Storing Password in an easy and secure way using Perl
• Digital Ocean
  • Cloud automation at Digital Ocean using Perl
  • Getting started with Perl Dancer on Digital Ocean
• DigitalOcean
  • Cloud automation at Digital Ocean using Perl
• dir
  • Unix and DOS commands
• Dir::Self
  • How to add a relative directory to @INC
• directory tree
  • Finding files in a directory tree using Perl
• dirname
  • How to add a relative directory to @INC
  • How to create a Perl Module for code reuse?
  • More UNIX commands
  • The 19 most important file-system tools in Perl 5
• dist.ini
  • Distribution directory layout
• Dist::Zilla
  • Adding list of contributors to the CPAN META files
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
  • Tools to package Perl scripts, modules, and applications
• distinct
  • Unique values in an array in Perl
  • Unique values in an array reference in Perl
• do
  • Exception handling in Perl: How to deal with fatal errors in external modules
  • do
• documentation
  • Core Perl documentation and CPAN module documentation
  • POD - Plain Old Documentation
• done_testing
  • Forget your plan, just call done_testing
• download
  • Download and install Perl
• du
  • disk usage: du in Perl
• dump
  • dump
• Dumper
  • Dumping a hash
• duplicate
  • Unique values in an array in Perl
• DWIM Perl
  • DWIM Perl for Linux; $^X vs $Config{perlpath}; Relocatable Perl; Test::Differences
  • Download and install Perl
  • Getting started with Perl Dancer - Creating an Echo application
  • Installing a Perl Module from CPAN on Windows, Linux and Mac OSX
  • Welcome and Installation
• e-book
  • Advanced Perl Maven book
  • Beginner Perl Maven e-book
  • Perl Books
  • Perl Maven Cookbook
  • Perl Maven Products
  • Test Automation using Perl e-book
• each
  • each
• echo
  • Getting started with Perl Dancer - Creating an Echo application
• Eclipse
  • Editors and IDEs for Perl developers
  • Perl Editor
• editor
  • Perl Editor
• else
  • Conditional statements, using if, else, elsif in Perl
  • Switch-Case statement in Perl 5
• else if
  • Conditional statements, using if, else, elsif in Perl
• elsif
  • Conditional statements, using if, else, elsif in Perl
  • Switch-Case statement in Perl 5
• emacs
  • Editors and IDEs for Perl developers
  • Perl Editor
• email
  • Fetching data from YouTube using Perl
• Email::Address
  • Adding the To: field to the MongoDB database
  • Email validation using Regular Expression in Perl
  • Putting the email in MongoDB - part 1
• Email::Folder
  • Indexing e-mails in an mbox
• Email::Send::SMTP::Gmail
  • Fetching data from YouTube using Perl
• Email::Sender::Transport::SMTP
  • Sending HTML e-mail using Email::Stuffer
• Email::Simple
  • Adding Date, Size, CC, and Message-ID
• Email::Stuffer
  • Sending HTML e-mail using Email::Stuffer
• Email::Valid
  • Email validation using Regular Expression in Perl
• embedded characters
  • Strings in Perl: quoted, interpolated and escaped
• employment
  • Want a job abroad? Improve your language and communication skills!
• Encode
  • Web Scraping TED - information about a specific talk
• encode_json
  • JSON in Perl
• encoding
  • Open and read from text files
  • Writing to files with Perl
• END
  • END
  • END
  • END block - running code after the application has ended
• endgrent
  • endgrent
• endhostent
  • endhostent
• endnetent
  • endnetent
• endprotoent
  • endprotoent
• endpwent
  • endpwent
• endservent
  • endservent
• English
  • Chomp and $/, the Input Record Separator
• eof
  • EOF - End of file in Perl
  • The diamond operator <> of Perl
  • eof
• eq
  • Compare Values
  • Comparing scalars in Perl
  • eq - Comparing if the two sides are equal as strings.
• Equality Operators
  • Equality Operators
• error
  • Common Errors and Warnings
• escape character
  • Strings in Perl: quoted, interpolated and escaped
• eval
  • Echo server with logging and timeout
  • Exception handling in Perl: How to deal with fatal errors in external modules
  • Protecting from crash
  • String-eval in Perl
  • eval
• evalbytes
  • evalbytes
• Excel
  • How to create an Excel file with Perl?
• Excel::Writer::XLSX
  • How to create an Excel file with Perl?
• exec
  • exec
• exercise
  • Exercise: display unique rows of a file
  • Exercise: improve number guessing game
  • Exercise: improve the color selector
  • Exercise: more statistics
  • Exercise: number guessing game
  • Exercise: number guessing in sub
  • Exercise: rectangular
  • Exercise: sort mixed string
  • Exercise: write report to file
• Exercise
  • Exercise: Hello World
  • Exercise: Regexes 1
• exerise
  • Exercise: add more statistics
• exists
  • exists
  • exists, delete in hash
• exit
  • How to exit from a Perl script?
  • exit
  • exit - How to exit from a Perl script?
• exp
  • exp
• Expect
  • Expect_before amd expect_after with perl and expect.pm
• explain
  • Test diagnostic messages using diag, note, and explain
• explode
  • Perl split - to cut up a string into pieces
• Exponentiation
  • Exponentiation
• Exporter
  • Exporting and importing functions easily
  • How to create a Perl Module for code reuse?
• ExtUtils::Embed
  • undefined reference to boot_DynaLoader
• ExtUtils::MakeMaker
  • Add META data to a CPAN distribution (Pod::Tree 1.19)
  • Adding list of contributors to the CPAN META files
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
  • How to declare requirements of a CPAN distribution?
  • Makefile.PL of ExtUtils::MakeMaker
  • Minimal requirement to build a sane CPAN package
  • Tools to package Perl scripts, modules, and applications
• false
  • Boolean values in Perl
  • True False
• FastCGI
  • Which is better perl-CGI, mod_perl or PSGI?
• fat arrow
  • Hashes in Perl
• fat comma
  • Hashes in Perl
• FATAL warnings
  • Scalar variables
• favicon.ico
  • Serving static files such as favicon.ico and robots.txt using Plack
• fc
  • fc
• fcntl
  • fcntl
• Fennec
  • 8: Chad (Exodist) Granum, author of the Fennec testing tool
• fetchrow_array
  • Simple Database access using Perl DBI and SQL
• fetchrow_hashref
  • Simple Database access using Perl DBI and SQL
• FH
  • Old style open
• FIFO
  • Using a queue in Perl
• File::Basename
  • Changing @INC relative path
  • Construct the path to a file in the same directory as the current script
  • How to add a relative directory to @INC
  • How to create a Perl Module for code reuse?
  • More UNIX commands
  • Sending email with attachments
  • The 19 most important file-system tools in Perl 5
• File::Copy
  • How to remove, copy or rename a file with Perl
  • More UNIX commands
• File::Find
  • File::Find
  • More UNIX commands
• File::Find::Rule
  • Traversing a directory tree, finding required files
• File::HomeDir
  • File::HomeDir
  • Using Twitter, sending Tweets from a Perl script
• File::Path
  • More UNIX commands
• File::Slurp
  • How to replace a string in a file with Perl
  • Sending email with attachments
  • slurp mode - reading a file in one step
• File::Spec
  • Changing @INC relative path
  • Construct the path to a file in the same directory as the current script
  • File::Spec
  • How to add a relative directory to @INC
  • The 19 most important file-system tools in Perl 5
• File::stat
  • How to get the size of a file in Perl
• File::Temp
  • The 19 most important file-system tools in Perl 5
• fileno
  • fileno
• files
  • Appending to files
  • Bumping version numbers in all the modules at once
  • Getting started with Net::Server - building an echo server
  • Mojolicious::Lite with embedded templates
• Filesys::DfPortable
  • Diskspace usage: df in Perl
  • Reporting diskspace usage on a mail server
• Filesys::DiskUsage
  • disk usage: du in Perl
• filter
  • Filtering values using Perl grep
  • Filters in AngularJS
  • Unique values in an array in Perl
  • Unique values in an array reference in Perl
• find -type f
  • Show number of files in a directory tree using Shell
  • Show number of files in several directory trees using Shell
• findAndModify
  • Command line counter with MongoDB as storage
• FindBin
  • Changing @INC relative path
  • How to add a relative directory to @INC
  • The 19 most important file-system tools in Perl 5
• FindBin::Bin
  • Construct the path to a file in the same directory as the current script
• FindBin::libs
  • How to add a relative directory to @INC
• first
  • Search for hash in an array of hashes
• first_index
  • How to get the index of specific element (value) of an array?
• Flickr::API
  • Fetching Pictures from Flickr using Perl
• Floating-point Arithmetic
  • Floating-point Arithmetic
• flock
  • flock
• foo
  • Acme::MetaSyntactic or how to get rid of foo and bar?
• for
  • Bug in the for-loop of Perl? - B::Deparse to the rescue
  • How to freak-out your co-workers with a for loop?
  • Perl for loop explained with examples
  • Show number of files in several directory trees using Shell
• foreach
  • Bug in the for-loop of Perl? - B::Deparse to the rescue
  • Perl Arrays
  • Perl for loop explained with examples
  • foreach loop over list
• fork
  • Have exceeded the maximum number of attempts (1000) to open temp file/dir
  • How to check if a child process is still running in Perl?
  • Random numbers in forked processes
  • Speed up calculation by running in parallel
  • Using fork in Perl to spread load to multiple cores
  • fork
• format
  • format
• FORMAT
  • ref - What kind of reference is this variable?
• formline
  • formline
• FreeBSD
  • How to install Perl modules on FreeBSD
• FreezeThaw
  • Data Serialization in Perl
• from_json
  • Get CPANstats from MetaCPAN using cron
• function
  • Subroutines and functions in Perl
• g
  • Global substitution with regexes
• GD
  • Drawing images with Perl using GD::Simple
• GD::Graph
  • Creating bar graphs using Perl GD::Graph
• GD::Simple
  • Drawing images with Perl using GD::Simple
• ge
  • Comparing scalars in Perl
  • ge - Greater than or equal. Comparing values as strings.
• Gedit
  • Editors and IDEs for Perl developers
• Geo::IP
  • Using Travis-CI and installing Geo::IP on Linux and OSX
• GET
  • Add and retrieve elements - jQuery + Ajax
• get
  • Get CPANstats from MetaCPAN using cron
  • Hello World with Dancer2
• getc
  • getc
• getcwd
  • Current working directory in Perl
• getgrent
  • getgrent
• getgrgid
  • getgrgid
• getgrnam
  • getgrnam
• gethostbyaddr
  • gethostbyaddr
• gethostbyname
  • gethostbyname
• gethostent
  • gethostent
• getlogin
  • getlogin
• getnetbyaddr
  • getnetbyaddr
• getnetbyname
  • getnetbyname
• getnetent
  • getnetent
• Getopt::Long
  • Advanced usage of Getopt::Long for accepting command line arguments
  • Create Linux user account
  • How to process command line arguments in Perl using Getopt::Long
  • Process command line using Getopt::Long
  • Process command line using Getopt::Long (screencast)
  • Sending email with attachments
• GetOptions
  • How to process command line arguments in Perl using Getopt::Long
• getpeername
  • getpeername
• getpgrp
  • getpgrp
• getppid
  • getppid
• getpriority
  • getpriority
• getprotobyname
  • getprotobyname
• getprotobynumber
  • getprotobynumber
• getprotoent
  • getprotoent
• getpwent
  • getpwent
• getpwnam
  • getpwnam
• getpwuid
  • getpwuid
• getservbyname
  • getservbyname
• getservbyport
  • getservbyport
• getservent
  • getservent
• getsockname
  • getsockname
• getsockopt
  • getsockopt
• getter
  • Attribute types in Perl classes when using Moose
  • Core Perl OOP: attributes, getter - setter
  • Object Oriented Perl using Moose
• gettext
  • gettext function not found. Please install libintl at Makefile.PL
• Git
  • 2: Michael Schwern on test automation and Git
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
  • Rename the SCO cloning project
• git
  • Becoming a co-maintainer of a CPAN-module
  • Becoming a co-maintainer of a CPAN-module - the first steps (Pod::Tree 1.17_01, 1.18)
  • Contributing to a Perl module on CPAN (using vim and GitHub)
• GitHub
  • Contributing to the Open Source Perl Ecosystem
  • Fixing test failure on Windows - Properly quoting regexes - Accepting GitHub pull request
  • Looking at a specific commit in GitHub
• Github
  • Building a static blog using Blio and Github
  • Contributing to a Perl module on CPAN (using vim and GitHub)
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
• GitHub pages
  • Blogging with Riji
• given
  • Switch-Case statement in Perl 5
  • Switching in Perl 5.10
• GLOB
  • ref - What kind of reference is this variable?
  • usage: GLOB->new([FILENAME [,MODE [,PERMS]]])
• glob
  • File globbing
  • Filtering values using Perl grep
  • glob
  • rename files
• global symbol
  • Global symbol requires explicit package name
• gmtime
  • The year of 19100
  • The year of 19100
  • gmtime
• Gory details of parsing quoted constructs
  • Gory details of parsing quoted constructs
• goto
  • goto
• grep
  • Filtering values using Perl grep
  • How to get the index of specific element (value) of an array?
  • How to grep a file using Perl
  • Search for hash in an array of hashes
  • The diamond operator <> of Perl
  • Unique values in an array in Perl
  • Unique values in an array reference in Perl
  • grep
• gt
  • Compare Values
  • Comparing scalars in Perl
  • Comparison Operators
  • gt - Greater than. Comparing values as strings.
• Handlebars
  • Replace manual HTML generation by the use of Handlebars
• has
  • Moose constructor
  • Moose testing type constraint
• hash
  • Count the frequency of words in text using Perl
  • Creating a hash from an array in Perl
  • Hashes in Perl
  • How to insert a hash in another hash in Perl
  • How to sort a hash in Perl?
  • How to sort a hash of hashes by value?
  • Multi dimensional hashes in Perl
  • Perl Hash
  • Perl hash in scalar and list context
• HASH
  • ref - What kind of reference is this variable?
• help
  • How to get Help for Perl?
  • The 11 Most useful Perl sites
• hex
  • hex
• hook
  • Refactoring Dancer 2 app, using before hook
• HTML5
  • Create the search.cpan.org look and feel
• HTML::TableExtract
  • How to extract a column using HTML::TableExtract
• HTML::TreeBuilder
  • Web scraping with HTML::TreeBuilder
• HTTP::Request::Common
  • Basic Authentication with LWP::UserAgent and HTTP::Request::Common
  • Testing PSGI based web applications using Plack::Test
• HTTP::Tiny
  • A Simple way to download many web pages using Perl
• HTTPS_PROXY
  • Crypt::SSLeay and HTTPS_PROXY Problem
• i
  • Case insensitive regexes
• I/O Operators
  • I/O Operators
• IDE
  • Perl Editor
• Identifier parsing
  • Identifier parsing
• if
  • Conditional statements, using if, else, elsif in Perl
  • Short Circuit
  • Statement modifiers: reversed if statements
  • Switch-Case statement in Perl 5
  • The 'if' statement
• Image::ExifTool
  • Adding custom tags with Image::ExifTool
  • Adding filename to IPTC data and-or exif data
  • Embed ICC Color Profile in JPEG
  • Exif ColorSpace tag value 2 is wrong?
  • ExifTool versions and xmp metadata
  • Extra information in Canon EOS 350 .CR2 after using Digital Photo Professional
  • How to Uninstall ExifTool on Mac OSX
  • How to remove thumbnail from a jpeg using Image::ExifTool
  • Image::ExifTool - Writing into IPTC-fields
  • Image::ExifTool IPTC UTF-8 Support?
  • Image::ExifTool: How to change file creation date?
  • Perl syntax to inject external XMP data into image files
  • Running exiftool in Mac OS X
  • Script to restore EXIF data from saved JPEGs (After image editing)
  • Unicode File Name Support - Suggested Solution
  • Using the exiftool library from php (in place of native php function)
• Imager
  • Imager: How to remove the alpha channel?
  • Linking Imager and libjpeg on MacOS-X
• import
  • Exporting and importing functions easily
  • How to create a Perl Module for code reuse?
  • Restrict the import by listing the functions to be imported
  • What is the difference between require and use? What does import do?
  • import
• indentation
  • Conditional statements, using if, else, elsif in Perl
• index
  • Analyze Apache log file
  • String functions: index
  • String functions: length, lc, uc, index, substr
  • index
• Index/Value Array Slices
  • Index/Value Array Slices
• infinite loop
  • Perl for loop explained with examples
  • while loop
• INIT
  • INIT
  • INIT
• install
  • Download and install Perl
• instance
  • Attribute types in Perl classes when using Moose
  • Object Oriented Perl using Moose
• Int
  • Moose type constraints
• int
  • Number Guessing game
  • int
  • rand() and int()
• integer
  • Number Guessing game
• Integer Arithmetic
  • Integer Arithmetic
• interpolation
  • Strings in Perl: quoted, interpolated and escaped
• interview
  • 10: Dave Miller, the leader of the Bugzilla project
  • 1: Jeffrey Thalhammer, author of Perl::Critic and Pinto
  • 2: Michael Schwern on test automation and Git
  • 3: Dave Rolsky, author of DateTime and tons of other modules
  • 4: Tadeusz Sośnierz author of the Perl 6 Pod Parser and Panda, the Perl 6 module installer
  • 5: Stevan Little, author of Moose and Moe
  • 6: John SJ Anderson, a biologist turned into sysadmin
  • 7: Jay Hannah, Chief Ticket Monkey of the Perl Mongers
  • 8: Chad (Exodist) Granum, author of the Fennec testing tool
  • 9: Neil Bowers - PAUSE and CPAN admin
• IO
  • ref - What kind of reference is this variable?
• IO::Prompter
  • Prompt, read from STDIN, read from the keyboard in Perl
• IO::Socket::INET
  • IO::Socket::INET configuration failed
• ioctl
  • ioctl
• IP
  • Is this IP in the given subnet?
• IPC::Run
  • How to provide STDIN to an external executable?
• IPC::Run3
  • How to provide STDIN to an external executable?
• IPTC
  • Image::ExifTool - Writing into IPTC-fields
• IPv4
  • What is my IP address, how to determine the IP address of your computer using Perl
• IPv6
  • What is my IP address, how to determine the IP address of your computer using Perl
• is
  • Moving over to Test::More
• is_any
  • Creating a testing module
  • Implementing 'is_any' to test multiple expected values
• is_deeply
  • Comparing complex data-structures using is_deeply
• is_number
  • Automatic string to number conversion or casting in Perl
• is_passing
  • What is the status of the current test script?
• isa
  • Classes as constraints in Moose
  • Moose type constraints
• ISBN
  • ISBN - International Standard Book Number - with Perl
• isnt
  • Moving over to Test::More
• JavaScript
  • PSGI and AJAX for single-page applications
• job interview
  • How to prepare for a Perl job interview?
• jobs
  • Perl developer jobs
• join
  • Join
  • join
  • join
• jQuery
  • Add and retrieve elements - jQuery + Ajax
  • Ajax and Dancer 2
  • Convert list to table and add jQuery tablesorting with Date column
• JSON
  • Comparing the speed of JSON decoders
  • Data Serialization in Perl
  • Get CPANstats from MetaCPAN using cron
  • How does the world wide web work?
  • JSON in Perl
  • Parsing NaN in JSON - JavaScript and Perl
  • Web Scraping TED - information about a specific talk
• JSON.parse
  • Showing objects in the JavaScript console without going mad
• JSON.stringify
  • Showing objects in the JavaScript console without going mad
• JSON::MaybeXS
  • JSON in Perl
• JSON::Syck
  • JSON in Perl
• JSON::XS
  • Comparing the speed of JSON decoders
  • JSON in Perl
• Kate
  • Editors and IDEs for Perl developers
• Key/Value Hash Slices
  • Key/Value Hash Slices
• kill
  • kill
• Komodo
  • Editors and IDEs for Perl developers
  • Perl Editor
• LABEL:
  • Check several regexes on many strings
• lambda
  • Python Lambda in Perl creating anonymous functions
• last
  • Check several regexes on many strings
  • Loop controls: next last
  • Using a queue in Perl
  • last
  • while loop
• last_insert_id
  • Process status in SQLite
• lc
  • String functions: length, lc, uc, index, substr
  • lc
• lcfirst
  • lcfirst
• le
  • Comparing scalars in Perl
  • le - Less than or equal. Comparing values as strings.
• length
  • Length of an array in Perl
  • Perl Arrays
  • Scalar and List context in Perl, the size of an array
  • String functions: length, lc, uc, index, substr
  • length
• lib
  • Changing @INC
  • Changing @INC relative path
  • How to add a relative directory to @INC
  • How to change @INC to find Perl modules in non-standard locations
  • How to create a Perl Module for code reuse?
• libintl
  • gettext function not found. Please install libintl at Makefile.PL
• license
  • How to add the license field to the META.yml and META.json files on CPAN?
• like
  • Using 'like' to test without exact values
• link
  • Unix and DOS commands
  • link
• links
  • How to get Help for Perl?
  • The 11 Most useful Perl sites
• lint
  • Perl::Critic example - lint for Perl
• Linux
  • Download and install Perl
  • How much memory does my Perl application use?
  • How to build perl from source on Linux
• LIST
  • Conext sensitivity
• list
  • Scalar and List context in Perl, the size of an array
  • Transforming a Perl array using map
• List Operators (Rightward)
  • List Operators (Rightward)
• List value constructors
  • List value constructors
• List::AllUtils
  • List and Array Utilities in Perl
• List::MoreUtils
  • Check several regexes on many strings
  • Does the 'all' function of List::MoreUtils really short-circuit?
  • Filtering values using Perl grep
  • How to get the index of specific element (value) of an array?
  • List and Array Utilities in Perl
  • Unique values in an array in Perl
• List::Pairwise
  • List and Array Utilities in Perl
• List::Util
  • How to calculate factorial in Perl - n!
  • List and Array Utilities in Perl
  • Operations on value-pairs in Perl
  • Search for hash in an array of hashes
  • The easiest way to find the highest hash value without looping through all of them (max)
• List::UtilsBy
  • List and Array Utilities in Perl
  • The easiest way to find the highest hash value without looping through all of them (max)
• listen
  • listen
• ln
  • Unix and DOS commands
• local
  • How to capture and save warnings in Perl
  • local
  • slurp mode - reading a file in one step
• local::lib
  • Install Perl modules without root rights on Linux Ubuntu 13.10 x64
• localtime
  • The year of 19100
  • The year of 19100
  • localtime
• lock
  • lock
• log
  • log
• Log::Log4perl
  • Logging in modules with Log4perl the easy way
  • Logging with Log4perl the easy way
  • Refactoring the script and add logging
• Log::Log4perl::Level
  • Logging in modules with Log4perl the easy way
  • Logging with Log4perl the easy way
• Logical And
  • Logical And
• Logical Defined-Or
  • Logical Defined-Or
• Logical Not
  • Logical Not
• Logical or and Exclusive Or
  • Logical or and Exclusive Or
• looks_like_number
  • Automatic string to number conversion or casting in Perl
  • Looks like number
  • Type checking with Moo
• loop
  • Perl for loop explained with examples
  • while loop
• ls
  • Unix and DOS commands
• ls -1
  • Show number of files in a directory tree using Shell
  • Show number of files in several directory trees using Shell
• lstat
  • lstat
• lt
  • Compare Values
  • Comparing scalars in Perl
  • Comparison Operators
  • lt - Less than. Comparing values as strings.
• ltrim
  • trim - removing leading and trailing white spaces with Perl
• Lvalue
  • Lvalue substr - replace part of a string
• LVALUE
  • ref - What kind of reference is this variable?
• LWP::Simple
  • A Simple way to download many web pages using Perl
  • Get CPANstats from MetaCPAN using cron
  • Mocking function to fake environment
• LWP::UserAgent
  • Basic Authentication with LWP::UserAgent and HTTP::Request::Common
  • Basic Authentication without a Challenge
  • LWP::UserAgent and Basic Authentication
  • Web Scraping TED - information about a specific talk
• lynx
  • Solution: Hello World part 2 (what is the difference between comment and POD?)
• m
  • Exercise: split HTTP GET request
  • Fixing Assembly with Perl
  • Solution: sort SNMP numbers
  • Understanding dates using regular expressions
  • m-for-matching
  • multiple lines in regexes
• m//
  • m//
• Mac OSX
  • Download and install Perl
• Mail::Sendmail
  • Reporting diskspace usage on a mail server
• make
  • Becoming a co-maintainer of a CPAN-module
  • Becoming a co-maintainer of a CPAN-module - the first steps (Pod::Tree 1.17_01, 1.18)
  • Packaging with Makefile.PL
• Makefile.PL
  • Becoming a co-maintainer of a CPAN-module
  • Becoming a co-maintainer of a CPAN-module - the first steps (Pod::Tree 1.17_01, 1.18)
  • Distribution directory layout
  • Getting started - Create skeleton for the SCO clone application
  • Packaging with Makefile.PL
• Making your module threadsafe
  • Making your module threadsafe
• MANIFEST
  • Fixing the release. Twice in a row! (Pod::Tree 1.22 and 1.23)
  • MANIFEST and MANIFEST.SKIP
• map
  • How to sort faster in Perl? (using the Schwartzian transform)
  • Search for hash in an array of hashes
  • Transforming a Perl array using map
  • Traversing a directory tree, finding required files
  • map
• Marpa
  • Marpa for building parsers - a first look
• Math::Random::Secure
  • Generate random numbers in Perl with the rand() function
• Math::TrulyRandom
  • Generate random numbers in Perl with the rand() function
• max
  • The easiest way to find the highest hash value without looping through all of them (max)
• max_by
  • The easiest way to find the highest hash value without looping through all of them (max)
• MD5
  • Benchmark: Refactoring MD5 calculation in Rex
• Memoize
  • Memoization - speeding up function calls by caching of return values
• memory
  • How much memory do Perl variables use?
• Memory::Usage
  • Eliminate circular reference memory-leak using weaken
  • How much memory does my Perl application use?
  • Memory usage and load time of Moose, Moo, and Class::Accessor
• META
  • Adding list of contributors to the CPAN META files
  • Fetching META data from Meta CPAN
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
• Meta::CPAN
  • Hacking Meta::CPAN - the first steps
• MetaCPAN
  • 20 most popular Perl modules
  • Adding news feed to MetaCPAN
  • Building an open source clone of search.cpan.org using the MetaCPAN API
  • CPAN, mcpan, MetaCPAN
  • Contributing to the Open Source Perl Ecosystem
  • Fetching META data from Meta CPAN
  • Get CPANstats from MetaCPAN using cron
  • Hacking Meta::CPAN - the first steps
  • How to fetch the CPAN dependency tree of a Perl module?
  • List all the Perl modules and distributions in a name-space using Meta CPAN
  • Meta::CPAN
  • MetaCPAN Task::Kensho - recommended Perl modules
  • MetaCPAN URLs and Issues
  • MetaCPAN and the CPAN Testers
  • MetaCPAN is awesome!
  • MetaCPAN recent uploads
  • Neat trick to jump from search.cpan.org to metacpan.org
  • Some MetaCPAN advanced search tricks using prefixes
• MetaCPAN::API
  • Fetching META data from Meta CPAN
  • How to fetch the CPAN dependency tree of a Perl module?
  • List all the Perl modules and distributions in a name-space using Meta CPAN
• MetaCPAN::Clients
  • List all the Perl modules and distributions in a name-space using Meta CPAN
• method
  • Inheritance and Method Modifiers in Moo
  • Public and Private Methods in Moo-based Object Oriented Perl
• MIME::Base64
  • Basic Authentication without a Challenge
• MIME::Lite
  • Contributing to a Perl module on CPAN (using vim and GitHub)
  • Sending email with attachments
• mkdir
  • Unix and DOS commands
  • mkdir
• mkpath
  • More UNIX commands
• mod_perl
  • Which is better perl-CGI, mod_perl or PSGI?
• module
  • How to create a Perl Module for code reuse?
• Module::Build
  • Adding list of contributors to the CPAN META files
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
  • Tools to package Perl scripts, modules, and applications
• Module::Install
  • Adding list of contributors to the CPAN META files
  • Can't locate inc/Module/Install.pm in @INC (you may need to install the inc::Module::Install module) (@INC contains: ...)
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
  • Makefile.PL of Module::Install
  • Tools to package Perl scripts, modules, and applications
• Modules::Build
  • Build.PL of Module::Build
• Modules::ProhibitEvilModules
  • How to forbid certain Perl modules from use?
• Mojo::JSON
  • JSON in Perl
• Mojolicious
  • Modern Web with Perl
  • Mojolicious - a web framework with clouds, rainbows and unicorns
• Mojolicious::Lite
  • Adding a layout to a Mojolicious::Lite based application
  • Getting started with Mojolicious::Lite
• MongoDB
  • Add and retrieve items - MongoDB, Dancer and Testing!
  • Adding the To: field to the MongoDB database
  • Command line counter with MongoDB as storage
  • Command line phonebook with MongoDB and Moo
  • Getting started with MongoDB using Perl - insert and simple update
  • MongoDB and Perl
  • MongoDB with Perl: insert, find and delete
  • Putting the email in MongoDB - part 1
  • Updating MongoDB using Perl
• Moo
  • Command line phonebook with MongoDB and Moo
  • Inheritance and Method Modifiers in Moo
  • Memory usage and load time of Moose, Moo, and Class::Accessor
  • Moo - Minimalist Object Orientation for Perl
  • Moo and required attributes
  • Moo attribute predicate and clearer
  • Moo attributes with default values
  • Moose-like type checking system for Moo
  • OOP with Moo
  • Public and Private Methods in Moo-based Object Oriented Perl
  • Switching to Moo - adding command line parameters
  • Type checking with Moo
  • Writing Command line scripts and accepting command line parameters using Moo
• Moose
  • Attribute types in Perl classes when using Moose
  • Classes as constraints in Moose
  • Creating subtypes for Moose
  • Memory usage and load time of Moose, Moo, and Class::Accessor
  • Moose - The postmodern object system for Perl
  • Moose constructor
  • Moose testing type constraint
  • Moose type constraints
  • Moose: Testing the constructor
  • Moose: coerce value to a subtype
  • Moose: testing the setter and getter
  • Object Oriented Perl using Moose
• Moose::Util::TypeConstraints
  • Moose: coerce value to a subtype
• Moose::Util::TypeConstraints;
  • Creating subtypes for Moose
• MooX::late
  • Moose-like type checking system for Moo
• MooX::Options
  • Command line phonebook with MongoDB and Moo
  • Switching to Moo - adding command line parameters
  • Writing Command line scripts and accepting command line parameters using Moo
• MooX::Singleton
  • Singleton Moo
• MooX::Types::CLike
  • Type checking with Moo
• MooX::Types::MooseLike
  • Type checking with Moo
• move
  • How to remove, copy or rename a file with Perl
  • More UNIX commands
• msgctl
  • msgctl
• msgget
  • msgget
• msgrcv
  • msgrcv
• msgsnd
  • msgsnd
• Multi-dimensional array emulation
  • Multi-dimensional array emulation
• Multiplicative Operators
  • Multiplicative Operators
• mv
  • How to remove, copy or rename a file with Perl
  • Unix and DOS commands
• my
  • "my" variable masks earlier declaration in same scope
  • Global symbol requires explicit package name
  • Package variables and Lexical variables in Perl
  • Scalar values and variables
  • Scalar variables
  • Scope of Variables
  • Scope of variables in Perl
  • Variable declaration in Perl
  • my
• Named Unary Operators
  • Named Unary Operators
• NaN
  • Parsing NaN in JSON - JavaScript and Perl
• ne
  • Comparing scalars in Perl
  • ne - Comparing if the two sides are NOT equal as strings.
• Neil Bowers
  • 9: Neil Bowers - PAUSE and CPAN admin
• Net::Address::IP::Local
  • What is my IP address, how to determine the IP address of your computer using Perl
• Net::Appliance::Session
  • Can't use Net::Appliance::Session inside a thread
• Net::DNS
  • DNS Name resolving - check DNS propagation with Perl
• Net::LDAP
  • Reading from LDAP in Perl using Net::LDAP
• Net::Ping
  • How to check if a server is live using Ping?
• Net::Server
  • Net::Server, a framework to build TCP/IP servers
• Net::Server::Multiplex
  • Chat server using Net::Server
• Net::SFTP
  • How to change default port in Net::SFTP?
  • RSA authentication with Net-SFTP
  • input must be 8 bytes long at DES.pm line 58. while using Net::SFTP
• Net::SMTP::SSL
  • IO::Socket::INET configuration failed
• Net::SSH::Perl
  • Net::SSH::Perl - Login Hang Resolved!
  • Net::SSH::Perl: Channel open failure: 1: reason 4: when connecting to Cisco router
• Net::Subnet
  • Is this IP in the given subnet?
• Net::Telnet
  • Echo server with logging and timeout
  • Testing a simple TCP/IP server using Net::Telnet
• Net::Twitter
  • Using Twitter, sending Tweets from a Perl script
• Net::Whois::Raw
  • Checking the whois record of many domains
• new
  • Core Perl OOP: Constructor arguments
  • Moose constructor
  • Moose testing type constraint
  • OOP - Object Oriented Perl
• newsletter
  • Perl Maven Newsletter
• next
  • Check several regexes on many strings
  • Loop controls: next last
  • Understanding dates using regular expressions
  • next
• ng-repeat
  • Filters in AngularJS
• Nginx
  • Deploying Python with uWSGI and Nginx on Ubuntu 13.10
• nginx
  • Getting started with Perl Dancer on Digital Ocean
• no
  • no
• No-ops
  • No-ops
• no_plan
  • Test without a Plan
• not
  • Logical Operators in Perl
• note
  • Test diagnostic messages using diag, note, and explain
• Notepad++
  • Editors and IDEs for Perl developers
• number
  • String to number conversion
• object
  • Attribute types in Perl classes when using Moose
  • Object Oriented Perl using Moose
• object oriented
  • Attribute types in Perl classes when using Moose
  • Object Oriented Perl using Moose
• Objects::ProhibitIndirectSyntax
  • Converting indirect calls
  • Eliminating indirect method calls
• oct
  • oct
• OFS
  • OFS
• ok
  • Moving over to Test::More
• OOP
  • Attribute types in Perl classes when using Moose
  • Getting started with Classic Perl OOP
  • OOP - Object Oriented Perl
  • OOP with Moo
  • Object Oriented Perl using Moose
  • Using object oriented modules
• open
  • Always use 3-argument open
  • Appending to files
  • Command line counter with plain text file back-end
  • Count the frequency of words in text using Perl
  • Don't Open Files in the old way
  • How to check if a string is all upper case (lower case) characters?
  • How to improve my Perl program?
  • How to merge one text file to the end of another text file?
  • How to replace a string in a file with Perl
  • How to split a text file line by line in Perl
  • Old style open
  • Open and read from text files
  • Open file
  • Open file all
  • Open file with error handling
  • Open or die
  • Writing to files with Perl
  • open
  • usage: GLOB->new([FILENAME [,MODE [,PERMS]]])
• open or die
  • Open and read from text files
  • Short-circuit in boolean expressions
  • Writing to files with Perl
• open source
  • Web sites powered by Perl with Open Source code-base
• open source products
  • Perl based open source products
• opendir
  • Data structure design for fast lookup
  • Reading the content of a directory
  • Traversing the filesystem - using a queue
  • Understanding recursive subroutines - traversing a directory tree
  • directory handle
  • opendir
• OpenOffice::OODoc
  • How to join (merge) several ODT files into one document
• openr_utf8
  • use Path::Tiny to read and write file
• operator expected
  • Scalar found where operator expected
• Operator Precedence and Associativity
  • Operator Precedence and Associativity
• OPTIONS
  • Deleting item using Ajax request with DELETE and OPTIONS
• or
  • Logical Operators in Perl
  • Short-circuit in boolean expressions
• ord
  • ord
• our
  • Package variables and Lexical variables in Perl
  • Variable declaration in Perl
  • our
• overload
  • Stringification in classic Perl OOP
• pack
  • pack
• package
  • Constructor and accessors in classic Perl OOP
  • Core Perl OOP: Constructor
  • Global symbol requires explicit package name
  • How to create a Perl Module for code reuse?
  • How to install Perl modules on FreeBSD
  • Namespaces and packages
  • Package variables and Lexical variables in Perl
  • Packages, modules, distributions, and namespaces in Perl
  • package
• Padre
  • Editors and IDEs for Perl developers
  • Perl Editor
  • Welcome and Installation
• PadWalker
  • Installing PadWalker on Windows, Linux and Mac OSX
  • PadWalker for Windows Solution
• pairfirst
  • Operations on value-pairs in Perl
• pairgrep
  • Operations on value-pairs in Perl
• pairkeys
  • Operations on value-pairs in Perl
• pairmap
  • Operations on value-pairs in Perl
• pairs
  • Operations on value-pairs in Perl
• pairvalues
  • Operations on value-pairs in Perl
• PAR
  • Tools to package Perl scripts, modules, and applications
• PAR::Packer
  • Tools to package Perl scripts, modules, and applications
• Parallel::ForkManager
  • Random numbers in forked processes
  • Speed up calculation by running in parallel
• param
  • Reverse Echo with Ajax and Dancer 2
• parent
  • OOP - Object Oriented Perl
• parser
  • Marpa for building parsers - a first look
• parsing
  • Help with perl (parsing error log)
• path
  • Checking the whois record of many domains
  • Get CPANstats from MetaCPAN using cron
  • How to add a relative directory to @INC
• Path::Iterator::Rule
  • Finding files in a directory tree using Perl
  • How to rename multiple files with one command on Windows, Linux, or Mac?
  • Indexing e-mails in an mbox
• Path::Tiny
  • Checking the whois record of many domains
  • Command line counter with JSON backend
  • Construct the path to a file in the same directory as the current script
  • Get CPANstats from MetaCPAN using cron
  • How to add a relative directory to @INC
  • How to rename multiple files with one command on Windows, Linux, or Mac?
  • How to replace a string in a file with Perl
  • slurp mode - reading a file in one step
  • use Path::Tiny instead of home-made ReadFile and WriteFile
  • use Path::Tiny to read and write file
• PAUSED
  • Fixing the release. Twice in a row! (Pod::Tree 1.22 and 1.23)
• PDF::Create
  • Adding images to PDF using Perl
• Perl
  • $_ the default variable of Perl
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
  • Scalar and List context in Perl, the size of an array
• Perl 5
  • How to add the license field to the META.yml and META.json files on CPAN?
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
• Perl Classes
  • Perl Classes
• Perl Modules
  • Perl Modules
• PERL5LIB
  • Changing @INC
  • How to change @INC to find Perl modules in non-standard locations
• Perl::Critic
  • 1: Jeffrey Thalhammer, author of Perl::Critic and Pinto
  • Always require explicit importing of functions
  • Avoid (unwanted) bitwise operators
  • Bare Here documents are deprecated - How to find offending code?
  • Converting indirect calls
  • Fix Perl::Critic test failures reported by CPAN Testers
  • How to forbid certain Perl modules from use?
  • How to improve my Perl program?
  • How to return nothing (or undef) from a function in Perl?
  • Improving your Perl code - one Perl::Critic policy at a time
  • Move packages to their own files - release Pod::Tree 1.21
  • Perl Critic distributions and policies
  • Perl::Critic exclude some policies - fix others (Pod::Tree 1.24)
  • Private Member Data shouldn't be accessed directly - encapsulation violation
  • Set minimum version number in every Perl file
  • Three-argument form of open used and it is not available until perl 5.6.
  • Type checking with Moo
• Perl::critic
  • Perl::Critic example - lint for Perl
• Perl::Critic::Bangs
  • Avoid (unwanted) bitwise operators
• Perl::Critic::Policy
  • Finding all Plack Middleware or Perl::Critic Policies
• Perl::Tidy
  • How to improve my Perl program?
  • Run Perl::Tidy to beautify the code
• Perl::Version
  • How to compare version numbers in Perl and for CPAN modules
  • Perl::Version vs version confusion
• perlcritic
  • Avoid (unwanted) bitwise operators
  • Bare Here documents are deprecated - How to find offending code?
  • Eliminating indirect method calls
  • Improving your Perl code - one Perl::Critic policy at a time
  • Move packages to their own files - release Pod::Tree 1.21
  • Perl::Critic example - lint for Perl
• perldoc
  • Core Perl documentation and CPAN module documentation
  • Documentation of Perl
  • Modules - Behind the scenes
  • POD - Plain Old Documentation
  • Solution: Hello World part 2 (what is the difference between comment and POD?)
• PERLLIB
  • How to change @INC to find Perl modules in non-standard locations
• PHP
  • Using the exiftool library from php (in place of native php function)
• ping
  • How to check if a server is live using Ping?
• Pinto
  • 1: Jeffrey Thalhammer, author of Perl::Critic and Pinto
• pinto
  • Pinto -- A Custom CPAN In A Box
• pipe
  • pipe
• pkg
  • How to install Perl modules on FreeBSD
• Plack
  • Getting started with PSGI
  • How to build a dynamic web application using PSGI
  • PSGI the superglue between Perl web application frameworks and web servers
  • Which is better perl-CGI, mod_perl or PSGI?
• Plack::App::File
  • Serving static site (the content of a directory) using Plack and PSGI
• Plack::Builder
  • Serving static files such as favicon.ico and robots.txt using Plack
  • Serving static site (the content of a directory) using Plack and PSGI
• Plack::Handler::CGI
  • Echo with Plack in CGI mode
  • Hello World with Plack in CGI mode
• Plack::Middleware
  • Finding all Plack Middleware or Perl::Critic Policies
• Plack::Middleware::DirIndex
  • Serving static site (the content of a directory) using Plack and PSGI
  • Testing PSGI based web applications using Plack::Test
• Plack::Middleware::Static
  • Serving static files such as favicon.ico and robots.txt using Plack
• Plack::Request
  • Asynchronous web application with PSGI and Twiggy
  • Create skeleton PSGI application for the SCO project
• Plack::Test
  • Testing PSGI based web applications using Plack::Test
• plackup
  • Concurrent Requests and measuring performance with ApacheBench
  • Getting started with PSGI
  • Hello World with Dancer2
  • How to build a dynamic web application using PSGI
  • Serving static site (the content of a directory) using Plack and PSGI
• POD
  • Core Perl documentation and CPAN module documentation
  • POD - Plain Old Documentation
  • POD - Plain Old Documentation
  • POD - modules processing Plain Old Documentation format
• pod2html
  • POD - Plain Old Documentation
  • Solution: Hello World part 2 (what is the difference between comment and POD?)
• pod2pdf
  • POD - Plain Old Documentation
• Pod::Tree
  • Becoming a co-maintainer of a CPAN-module
  • Becoming a co-maintainer of a CPAN-module - the first steps (Pod::Tree 1.17_01, 1.18)
• Pod::Usage
  • Sending email with attachments
• pop
  • Manipulating Perl arrays: shift, unshift, push, pop
  • Perl Arrays
  • Reverse Polish Calculator in Perl using a stack
  • pop
  • pop and push
• pos
  • pos
• POSIX
  • How to check if a child process is still running in Perl?
  • Simple timestamp generation using POSIX strftime in Perl
• possible typo
  • Name "main::x" used only once: possible typo at ...
• POST
  • Add and retrieve elements - jQuery + Ajax
  • Add and retrieve items - MongoDB, Dancer and Testing!
• ppm
  • Installing modules from the OS vendor
• predicate
  • Moo attribute predicate and clearer
• PRIMARY KEY
  • Process status in SQLite
• print
  • Debugging Perl scripts
  • Installing and getting started with Perl
  • Write to file
  • Your first script: Hello world
  • print
• printf
  • Don't interpolate in printf (Missing argument in sprintf at ...)
  • printf
• prototype
  • prototype
• prove
  • prove, the harness
• PSGI
  • Asynchronous web application with PSGI and Twiggy
  • Combining SVG and PSGI
  • Concurrent Requests and measuring performance with ApacheBench
  • Create skeleton PSGI application for the SCO project
  • Getting started with PSGI
  • How to build a dynamic web application using PSGI
  • Modern Web with Perl
  • PSGI and AJAX for single-page applications
  • PSGI the superglue between Perl web application frameworks and web servers
  • Routing with PSGI
  • Start using Template Toolkit to show the empty pages
  • Which is better perl-CGI, mod_perl or PSGI?
• push
  • Manipulating Perl arrays: shift, unshift, push, pop
  • Perl Arrays
  • Reverse Polish Calculator in Perl using a stack
  • Using a queue in Perl
  • pop and push
  • push
• pwd
  • Current working directory in Perl
  • More UNIX commands
• Python
  • Deploying Python with uWSGI and Nginx on Ubuntu 13.10
• q
  • Here documents, or how to create multi-line strings in Perl
  • Strings in Perl: quoted, interpolated and escaped
  • q
• qq
  • Here documents, or how to create multi-line strings in Perl
  • Strings in Perl: quoted, interpolated and escaped
  • qq
• qr
  • Check several regexes on many strings
  • qr
• quantifiers
  • Quantifiers
• QUERY_STRING
  • Echo with plain CGI
• queue
  • Traversing the filesystem - using a queue
  • Using a queue in Perl
• quote
  • Strings in Perl: quoted, interpolated and escaped
• Quote and Quote-like Operators
  • Quote and Quote-like Operators
• Quote-Like Operators
  • Quote-Like Operators
• quotemeta
  • quotemeta
• qw
  • Array assignment
  • qw - quote word
• qx
  • How to provide STDIN to an external executable?
  • qx
• rand
  • Generate random numbers in Perl with the rand() function
  • Number Guessing game
  • Random numbers in forked processes
  • Select random elements from a weighted list
  • rand
  • rand() and int()
• random
  • Have exceeded the maximum number of attempts (1000) to open temp file/dir
  • Number Guessing game
• Range Operators
  • Range Operators
• re
  • Keep data in client and fetch only changes
  • Testing a tree data structure in Perl
  • Use of uninitialized value $got in pattern match (m//) at Test/Deep/Regexp.pm line 57.
• read
  • Open and read from text files
  • read
• read_file
  • How to replace a string in a file with Perl
• read_password
  • How to read a password on the command line?
• readdir
  • Reading the content of a directory
  • Traversing the filesystem - using a queue
  • Understanding recursive subroutines - traversing a directory tree
  • directory handle
  • readdir
• readline
  • Read file line by line
  • read one line
  • readline
• readlink
  • readlink
• README
  • Changes and README
• Readonly
  • Constants and read-only variables in Perl
• Readonly::XS
  • Constants and read-only variables in Perl
• readpipe
  • readpipe
• recursive
  • Finding files in a directory tree using Perl
  • Understanding recursive subroutines - traversing a directory tree
• recv
  • recv
• redo
  • redo
• reduce
  • How to calculate factorial in Perl - n!
• REF
  • ref - What kind of reference is this variable?
• ref
  • Stringification in classic Perl OOP
  • ref
  • ref - What kind of reference is this variable?
• regex
  • Check several regexes on many strings
  • Email validation using Regular Expression in Perl
  • How to extract strings from a file
  • How to grep a file using Perl
  • Understanding Regular Expressions found in Getopt::Std
  • Understanding dates using regular expressions
  • Understanding regular expressions
• regexes
  • /x modifier for verbose regexes
  • Any number of any characters
  • Case insensitive regexes
  • Character classes
  • Exercise: Match numbers with regex
  • Exercise: Roman numbers
  • Exercise: hexa, octal, binary
  • Exercise: parse INI file
  • Exercise: parse hours log file and create time report
  • Exercise: parse perl file
  • Exercise: sort SNMP numbers
  • Exercise: split HTTP GET request
  • Exercise: split path - filename/dirname
  • Finding a string in a file
  • Fixing Assembly with Perl
  • Fixing dates using Regexes
  • Global substitution with regexes
  • Greedy regex quantifiers
  • Match any character
  • Minimal Regex Matching
  • More about Character classes
  • Negated character class
  • Optional Characters
  • Quantifiers on Character classes
  • Regex Alternatives
  • Regex Anchors
  • Regexes
  • Simple use of Regexes
  • Single character match
  • Single-line regexes using /s
  • Solution: Match numbers with regex
  • Solution: hexa, octal, binary
  • Solution: regexes 2
  • Solution: regexes 3
  • Solution: sort SNMP numbers
  • Solution: split HTTP using Regex
  • Solution: split path - filename/dirname
  • Special character classes
  • Were can I use Regexes
  • m-for-matching
  • multiple lines in regexes
  • split with regex
  • substitution
  • trim
• Regexp
  • ref - What kind of reference is this variable?
• Regexp Quote-Like Operators
  • Regexp Quote-Like Operators
• regular expression
  • Understanding dates using regular expressions
• rel2abs
  • Changing @INC relative path
• Relational Operators
  • Relational Operators
• remove
  • Deleting item using Ajax request with DELETE and OPTIONS
  • How to remove, copy or rename a file with Perl
• rename
  • How to remove, copy or rename a file with Perl
  • Unix and DOS commands
  • rename
  • rename files
• REPL
  • Using the built-in debugger of Perl as REPL
• replace
  • How to replace a string in a file with Perl
• require
  • How does require find the module to be loaded?
  • Modules in Perl
  • Perl 4 libraries
  • What is the difference between require and use? What does import do?
  • require
• required
  • Moo and required attributes
• reset
  • reset
• return
  • How to return nothing (or undef) from a function in Perl?
  • Subroutines and functions in Perl
  • Understanding recursive subroutines - traversing a directory tree
  • return
• reverse
  • Reverse an array, a string or a number
  • reverse
  • reverse
• rewinddir
  • rewinddir
• Rex
  • Benchmark: Refactoring MD5 calculation in Rex
  • Levels of security using (R)?ex
• Riji
  • Blogging with Riji
• rindex
  • How to break lines with max width? (wrap)
  • rindex
• rlib
  • How to add a relative directory to @INC
• rm
  • How to remove, copy or rename a file with Perl
• rmdir
  • Unix and DOS commands
  • rmdir
• rmtree
  • More UNIX commands
• robots.txt
  • Serving static files such as favicon.ico and robots.txt using Plack
• RT
  • MetaCPAN URLs and Issues
• rtrim
  • trim - removing leading and trailing white spaces with Perl
• RUN
  • RUN
• run
  • How to provide STDIN to an external executable?
• run3
  • How to provide STDIN to an external executable?
• rw
  • Moose constructor
  • Moose testing type constraint
• s
  • Single-line regexes using /s
• s/
  • substitution
• s///
  • s///
• salt
  • Storing Password in an easy and secure way using Perl
• say
  • Installing and getting started with Perl
  • Scalar variables
  • What's new in Perl 5.10? say, //, state
  • say
• scalar
  • $_ the default variable of Perl
  • Installing and getting started with Perl
  • Length of an array in Perl
  • Perl Arrays
  • Reading from a file in scalar and list context
  • STDIN in scalar and list context
  • Scalar and List context in Perl, the size of an array
  • String functions: length, lc, uc, index, substr
  • scalar
• SCALAR
  • Conext sensitivity
  • array in context
  • ref - What kind of reference is this variable?
• scalar found
  • Scalar found where operator expected
• Scalar value constructors
  • Scalar value constructors
• Scalar values
  • Scalar values
• Scalar::Util
  • Automatic string to number conversion or casting in Perl
  • Class method and alternative constructor in classic Perl OOP
  • Eliminate circular reference memory-leak using weaken
  • Looks like number
  • Stringification in classic Perl OOP
  • Type checking with Moo
• Schwartzian
  • How to sort faster in Perl? (using the Schwartzian transform)
• SCO
  • Add "404 Not Found" page
  • Add another static page
  • Add some acceptance tests using search.cpan.org
  • Create the search.cpan.org look and feel
  • Getting started - Create skeleton for the SCO clone application
  • Protecting from crash
  • Rename the SCO cloning project
  • Show CPANstats on every page
  • search.cpan.org: Authors, Recent, FAQ, Feedback
  • search.cpan.org: Individual Author pages
• scope
  • "my" variable masks earlier declaration in same scope
  • Scope of variables in Perl
• screencast
  • /x modifier for verbose regexes
  • A hash and its uses
  • Add "404 Not Found" page
  • Add another static page
  • Add some acceptance tests using search.cpan.org
  • Analyze Apache log file
  • Any number of any characters
  • Array assignment
  • Array indexes
  • Array indexes (screencast)
  • Build.PL of Module::Build
  • Building a blog engine using Perl Dancer
  • Building an open source clone of search.cpan.org using the MetaCPAN API
  • CPAN Testers and CPAN Ratings
  • CPAN, mcpan, MetaCPAN
  • Case insensitive regexes
  • Changes and README
  • Changing @INC
  • Changing @INC relative path
  • Character classes
  • Check several regexes on many strings
  • Classes as constraints in Moose
  • Command line parameters
  • Command line parameters (screencast)
  • Comments
  • Common Errors and Warnings
  • Compare Values
  • Comparing complex data-structures using is_deeply
  • Comparing scalars in Perl
  • Comparing the speed of JSON decoders
  • Comparison Operators
  • Conext sensitivity
  • Contributing to a Perl module on CPAN (using vim and GitHub)
  • Core Perl OOP: Constructor
  • Core Perl OOP: Constructor arguments
  • Core Perl OOP: attributes, getter - setter
  • Count digits
  • Counting words in a file
  • Create Linux user account
  • Create skeleton PSGI application for the SCO project
  • Create the search.cpan.org look and feel
  • Creating a hash
  • Creating a hash from an array
  • Creating a testing module
  • Creating an array
  • Creating subtypes for Moose
  • Debug sum numbers
  • Debugging Perl scripts
  • Defining subroutines
  • Diskspace usage: df in Perl
  • Distribution directory layout
  • Documentation of Perl
  • Don't interpolate in printf (Missing argument in sprintf at ...)
  • Dumping a hash
  • Editors and IDEs for Perl developers
  • Exercise: Hello World
  • Exercise: Match numbers with regex
  • Exercise: Roman numbers
  • Exercise: hexa, octal, binary
  • Exercise: improve Apache log analyzer
  • Exercise: improve color selector
  • Exercise: parse HTTP values
  • Exercise: parse INI file
  • Exercise: parse hours log file and create time report
  • Exercise: parse perl file
  • Exercise: parse variable width fields
  • Exercise: sort SNMP numbers
  • Exercise: sort scores
  • Exercise: split HTTP GET request
  • Exercise: split path - filename/dirname
  • Exporting and importing functions easily
  • Fetching data from YouTube using Perl
  • Fetching data from a hash
  • File globbing
  • File::Find
  • File::HomeDir
  • File::Spec
  • Filehandle in SCALAR and LIST context
  • Finding a string in a file
  • Fixing Assembly with Perl
  • Fixing dates using Regexes
  • Forget your plan, just call done_testing
  • Functions and Subroutines
  • Get CPANstats from MetaCPAN using cron
  • Getting started - Create skeleton for the SCO clone application
  • Getting started with Perl Dancer - Creating an Echo application
  • Global substitution with regexes
  • Greedy regex quantifiers
  • Here documents
  • How does require find the module to be loaded?
  • How to break lines with max width? (wrap)
  • Implementing 'is_any' to test multiple expected values
  • Import on demand
  • Installing Perl modules using cpan
  • Installing and getting started with Perl
  • Installing modules from the OS vendor
  • Introducing test automation with Test::Simple
  • Introduction to the Advanced Perl course
  • Is this IP in the given subnet?
  • Join
  • List assignment
  • Lists in Perl
  • Logging in modules with Log4perl the easy way
  • Logging with Log4perl the easy way
  • Logical Operators in Perl
  • Looking at a specific commit in GitHub
  • Looks like number
  • Loop controls: next last
  • MANIFEST and MANIFEST.SKIP
  • Makefile.PL of ExtUtils::MakeMaker
  • Makefile.PL of Module::Install
  • Match any character
  • MetaCPAN Task::Kensho - recommended Perl modules
  • MetaCPAN URLs and Issues
  • MetaCPAN and the CPAN Testers
  • MetaCPAN is awesome!
  • MetaCPAN recent uploads
  • Minimal Regex Matching
  • Mocking function to fake environment
  • Modern Web with Perl
  • Modules - Behind the scenes
  • Modules in Perl
  • Moose constructor
  • Moose testing type constraint
  • Moose type constraints
  • Moose: Testing the constructor
  • Moose: coerce value to a subtype
  • Moose: testing the setter and getter
  • More UNIX commands
  • More about Character classes
  • Moving over to Test::More
  • Multiple expected values - testing dice
  • Namespaces and packages
  • Negated character class
  • No such file
  • Numerical Operators
  • OOP with Moo
  • Old style open
  • One-liner sum of column in CSV
  • Open file
  • Open file all
  • Open file with error handling
  • Open or die
  • Optional Characters
  • Organizing a test script with subtests
  • POD - Plain Old Documentation
  • Packaging a script and a module
  • Packaging with Build.PL
  • Packaging with Makefile.PL
  • Perl 4 libraries
  • Perl on the command line (screencast)
  • Perl videos and screencasts
  • Process CSV file
  • Process CSV file short version
  • Process CSV file using Text::CSV_XS
  • Process command line using Getopt::Long
  • Process command line using Getopt::Long (screencast)
  • Processing config file
  • Protecting from crash
  • Quantifiers
  • Quantifiers on Character classes
  • Read file line by line
  • Read fixed width records - using unpack
  • Reading Excel file using Perl
  • Refactoring large test suite - separating data from code
  • Regex Alternatives
  • Regex Anchors
  • Regex Capturing
  • Regexes
  • Rename the SCO cloning project
  • Reporting diskspace usage on a mail server
  • Restrict the import by listing the functions to be imported
  • Safety net (use strict; use warnings;)
  • Scalar values and variables
  • Scalar variables
  • Scope of Variables
  • Sending HTML e-mail using Email::Stuffer
  • Sending email with attachments
  • Separating test data from test code
  • Serving static files such as favicon.ico and robots.txt using Plack
  • Short Circuit
  • Show CPANstats on every page
  • Simple use of Regexes
  • Single character match
  • Single-line regexes using /s
  • Solution: Hello World part 1
  • Solution: Hello World part 2 (what is the difference between comment and POD?)
  • Solution: Match numbers with regex
  • Solution: add more statistics
  • Solution: area of rectangular
  • Solution: area prompt and warn
  • Solution: concatenation
  • Solution: hexa, octal, binary
  • Solution: improve Apache log-analyzer
  • Solution: improve color selector
  • Solution: improve the color selector
  • Solution: improve the color selector - check input
  • Solution: improve the color selector - colors.txt
  • Solution: improve the color selector - filename
  • Solution: improve the color selector - force
  • Solution: number guessing game
  • Solution: number guessing game - d debug toggle
  • Solution: number guessing game - exit
  • Solution: number guessing game - m move toggle
  • Solution: number guessing game - multiple guesses
  • Solution: number guessing game - n next game
  • Solution: number guessing game - s show
  • Solution: parse HTTP values
  • Solution: parse variable width fields
  • Solution: regexes 1
  • Solution: regexes 2
  • Solution: regexes 3
  • Solution: sort SNMP numbers
  • Solution: sort scores
  • Solution: split HTTP using Regex
  • Solution: split path - filename/dirname
  • Solution: write report to file
  • Some interesting CPAN modules
  • Special character classes
  • Start using Template Toolkit to show the empty pages
  • String functions: index
  • String functions: length, lc, uc, index, substr
  • String operators
  • String to number conversion
  • Substr
  • Sum numbers in a file
  • TODO - testing a bug or a future feature
  • Test diagnostic messages using diag, note, and explain
  • Test file
  • Test for expected warnings
  • Test plan and test descriptions
  • Test without a Plan
  • Test::Builder object
  • Testing sessions by mocking time
  • Testing timeout with cmp_ok
  • The 'if' statement
  • The Ternary operator
  • The problem with libraries
  • The year of 19100
  • Tools to package Perl scripts, modules, and applications
  • True False
  • Unix and DOS commands
  • Using 'like' to test without exact values
  • Using object oriented modules
  • Using procedural Perl modules
  • Using the built-in debugger of Perl
  • Using the built-in debugger of Perl as REPL
  • Variable interpolation - User Input and Output - chomp
  • Welcome and Installation
  • Were can I use Regexes
  • What is CPAN?
  • What is the difference between require and use? What does import do?
  • What is the status of the current test script?
  • Write to file
  • Your first script: Hello world
  • array in context
  • die, warn, exit
  • directory handle
  • disk usage: du in Perl
  • exists, delete in hash
  • external-programs
  • foreach loop over list
  • hash in SCALAR context
  • m-for-matching
  • multiple lines in regexes
  • pop and push
  • prove, the harness
  • rand() and int()
  • read one line
  • rename files
  • reverse
  • search.cpan.org
  • search.cpan.org: Authors, Recent, FAQ, Feedback
  • search.cpan.org: Individual Author pages
  • shell-x
  • shift
  • shift and unshift
  • slurp
  • sort
  • split with regex
  • strings in double quotes
  • strings in single quotes
  • substitution
  • trim
  • undef
  • while loop
• security
  • How to read a password on the command line?
• seek
  • seek
• seekdir
  • seekdir
• select
  • select
• SELECT
  • Simple Database access using Perl DBI and SQL
• selectrow_array
  • Process status in SQLite
• semctl
  • semctl
• semget
  • semget
• semop
  • semop
• send
  • send
• Sereal
  • Data Serialization in Perl
• session
  • Counter with Dancer Sessions
• setgrent
  • setgrent
• sethostent
  • sethostent
• setnetent
  • setnetent
• setpgrp
  • setpgrp
• setpriority
  • setpriority
• setprotoent
  • setprotoent
• setpwent
  • setpwent
• setservent
  • setservent
• setsockopt
  • setsockopt
• setter
  • Attribute types in Perl classes when using Moose
  • Core Perl OOP: attributes, getter - setter
  • Object Oriented Perl using Moose
  • What should setters return? (Examples with core Perl OOP)
• shell
  • Unix and DOS commands
  • external-programs
  • shell-x
• shift
  • Manipulating Perl arrays: shift, unshift, push, pop
  • Perl Arrays
  • Processing command line arguments - @ARGV in Perl
  • Using a queue in Perl
  • shift
  • shift
  • shift and unshift
  • shift in Perl
• Shift Operators
  • Shift Operators
• shmctl
  • shmctl
• shmget
  • shmget
• shmread
  • shmread
• shmwrite
  • shmwrite
• shutdown
  • shutdown
• sigil
  • Scalar variables
• sin
  • sin
• sites
  • How to get Help for Perl?
  • The 11 Most useful Perl sites
• size
  • Perl Arrays
  • Scalar and List context in Perl, the size of an array
• Skype::Any
  • How to get notification when specific contact goes online in Skype?
• sleep
  • sleep
• Slices
  • Slices
• slurp
  • How to replace a string in a file with Perl
  • slurp
  • slurp mode - reading a file in one step
  • use Path::Tiny instead of home-made ReadFile and WriteFile
• slurp_utf8
  • use Path::Tiny to read and write file
• smart match
  • Smart Matching in Perl 5.10
• Smartmatch Operator
  • Smartmatch Operator
• Smartmatching of Objects
  • Smartmatching of Objects
• Smolder
  • TAP - Test Anything Protocol
• SNMP
  • Exercise: sort SNMP numbers
• SOAP::WSDL
  • "Deep recursion" warning while using wsdl2perl.pl
  • Modify default timeout in SOAP::WSDL
  • New to SOAP::WSDL
  • SOAP::WSDL retrieving output
  • import schema within the WSDL
• socket
  • socket
• socketpair
  • socketpair
• solution
  • Solution: add more statistics
  • Solution: area of rectangular
  • Solution: area prompt and warn
  • Solution: improve the color selector
  • Solution: improve the color selector - check input
  • Solution: improve the color selector - colors.txt
  • Solution: improve the color selector - filename
  • Solution: improve the color selector - force
  • Solution: number guessing game
  • Solution: number guessing game - d debug toggle
  • Solution: number guessing game - exit
  • Solution: number guessing game - m move toggle
  • Solution: number guessing game - multiple guesses
  • Solution: number guessing game - n next game
  • Solution: number guessing game - s show
  • Solution: write report to file
• Solution
  • Solution: Hello World part 1
• sort
  • How to sort a hash in Perl?
  • How to sort a hash of hashes by value?
  • How to sort faster in Perl? (using the Schwartzian transform)
  • Short-circuit in boolean expressions
  • Sorting arrays in Perl
  • Sorting mixed strings
  • The easiest way to find the highest hash value without looping through all of them (max)
  • sort
  • sort
• space
  • How to check if string is empty or has only spaces in it using Perl?
• Special Literals
  • Special Literals
• spew
  • use Path::Tiny instead of home-made ReadFile and WriteFile
• spew_utf8
  • Get CPANstats from MetaCPAN using cron
  • use Path::Tiny to read and write file
• splain
  • use diagnostic; or use splain
• splice
  • How to eliminate a value in the middle of an array in Perl?
  • How to insert an array into another array in Perl?
  • Splice to slice and dice arrays in Perl
  • splice
• split
  • Count the frequency of words in text using Perl
  • How to calculate the balance of bank accounts in a CSV file, using Perl?
  • How to read a CSV file using Perl?
  • How to split a text file line by line in Perl
  • Multiple command line counters with plain TSV text file back-end
  • Perl split - to cut up a string into pieces
  • Split retainig the separator or parts of it in Perl
  • split
  • split with regex
• Spreadsheet::ParseExcel::Simple
  • Reading Excel file using Perl
• Spreadsheet::Read
  • How to read an Excel file in Perl
• Spreadsheet::WriteExcel
  • Spreadsheet::WriteExcel - Maximum number of sheets
• sprintf
  • Don't interpolate in printf (Missing argument in sprintf at ...)
  • sprintf
• SQL
  • Calculating bank balance, take two: DBD::CSV
  • Simple Database access using Perl DBI and SQL
• SQL::Translator
  • A command line counter with database back-end using DBIx::Class
• sqrt
  • sqrt
• srand
  • Random numbers in forked processes
  • srand
• ssh
  • Levels of security using (R)?ex
• Starman
  • Concurrent Requests and measuring performance with ApacheBench
  • Getting started with Perl Dancer on Digital Ocean
• START
  • START
• stat
  • How to get the size of a file in Perl
  • stat
• state
  • How to capture and save warnings in Perl
  • Package variables and Lexical variables in Perl
  • Static and state variables in Perl
  • Variable declaration in Perl
  • What's new in Perl 5.10? say, //, state
  • state
• static
  • Static and state variables in Perl
• STDERR
  • Standard output, standard error and command line redirection
  • Warning when something goes wrong
• STDIN
  • How to read a password on the command line?
  • Installing and getting started with Perl
  • Open and read from text files
  • Prompt, read from STDIN, read from the keyboard in Perl
  • STDIN in scalar and list context
• STDOUT
  • How to create an Indian Rupee symbol with Perl code
  • Standard output, standard error and command line redirection
• Storable
  • Caching data using the Cache module
  • Data Serialization in Perl
• Strawberry Perl
  • Installing a Perl Module from CPAN on Windows, Linux and Mac OSX
• strftime
  • Simple timestamp generation using POSIX strftime in Perl
• strict
  • Always use strict and use warnings in your perl code!
  • Always use strict!
  • Barewords in Perl
  • Creating subroutines on the fly using Symbolic references
  • Global symbol requires explicit package name
  • Installing and getting started with Perl
  • Name "main::x" used only once: possible typo at ...
  • Safety net (use strict; use warnings;)
  • Scalar variables
  • Symbolic references in Perl
  • Variable declaration in Perl
  • use strict; and warnings; but no diagnostics
• string
  • String to number conversion
• strings
  • Strings in Perl: quoted, interpolated and escaped
• study
  • study
• sub
  • Defining subroutines
  • Functions and Subroutines
  • Passing two arrays to a function
  • Python Lambda in Perl creating anonymous functions
  • Subroutines and functions in Perl
  • Understanding recursive subroutines - traversing a directory tree
  • Variable number of parameters in Perl subroutines
  • sub
• subroutine
  • Subroutines and functions in Perl
• Subroutines::ProhibitCallsToUndeclaredSubs
  • Always require explicit importing of functions
• Subscripts
  • Subscripts
• substr
  • Analyze Apache log file
  • How to break lines with max width? (wrap)
  • How to get the last character of a string in Perl?
  • Lvalue substr - replace part of a string
  • Sorting mixed strings
  • String functions: length, lc, uc, index, substr
  • Substr
  • substr
• subtest
  • Organizing a test script with subtests
• subtype
  • Creating subtypes for Moose
• Subversion
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
• sum
  • Sum numbers in a file
• SVG
  • Combining SVG and PSGI
  • SVG - Scalable Vector Graphics
  • SVG - Scalable Vector Graphics with Perl
  • Venn diagram with SVG
• SVN
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
• svn:ignore
  • Don't keep generated files in version control
• switch
  • Switch-Case statement in Perl 5
  • Switching in Perl 5.10
• Symbol Tables
  • Symbol Tables
• symbolic references
  • Creating subroutines on the fly using Symbolic references
  • Symbolic references in Perl
• Symbolic Unary Operators
  • Symbolic Unary Operators
• symlink
  • Unix and DOS commands
  • symlink
• SYNOPSIS
  • Packaging a script and a module
• syntax error
  • Scalar found where operator expected
• syscall
  • syscall
• sysopen
  • sysopen
• sysread
  • sysread
• sysseek
  • sysseek
• system
  • Create Linux user account
  • Running external programs from Perl with system
  • system
• syswrite
  • syswrite
• Tablesorter
  • Convert list to table and add jQuery tablesorting with Date column
• TAP
  • TAP - Test Anything Protocol
  • Testing a simple Perl module
  • prove, the harness
• TAP::Formatter::HTML
  • TAP - Test Anything Protocol
• Task::Kensho
  • MetaCPAN Task::Kensho - recommended Perl modules
• tell
  • tell
  • tell FILEHANDLE - Returns the current position in bytes for FILEHANDLE.
• telldir
  • telldir
• tempdir
  • The 19 most important file-system tools in Perl 5
• Template::Toolkit
  • Add "404 Not Found" page
  • Add another static page
  • Show CPANstats on every page
  • Start using Template Toolkit to show the empty pages
• Term::ReadPassword::Win32
  • How to read a password on the command line?
  • Password protecting web pages in Dancer 2
• Terms and List Operators (Leftward)
  • Terms and List Operators (Leftward)
• test
  • Test file
• Test::Builder
  • Test::Builder object
  • What is the status of the current test script?
• Test::CheckManifest
  • Skip tests if prerequisites are not installed
• Test::Code::TidyAll
  • Run Perl::Tidy to beautify the code
  • Skip tests if prerequisites are not installed
• Test::Compile
  • Check test coverage - add compile tests
• Test::Deep
  • Keep data in client and fetch only changes
  • Testing a tree data structure in Perl
  • Use of uninitialized value $got in pattern match (m//) at Test/Deep/Regexp.pm line 57.
• Test::DistManifest
  • Skip tests if prerequisites are not installed
• Test::Harness
  • TAP - Test Anything Protocol
  • prove, the harness
• Test::Mock::Simple
  • Mocking function to fake environment
• Test::MockTime
  • Testing sessions by mocking time
• Test::More
  • 2: Michael Schwern on test automation and Git
  • Comparing complex data-structures using is_deeply
  • Creating a testing module
  • Getting started - Create skeleton for the SCO clone application
  • Implementing 'is_any' to test multiple expected values
  • Moving over to Test::More
  • Multiple expected values - testing dice
  • Refactor the tests to use Test::More (Pod::Tree 1.20)
  • TODO - testing a bug or a future feature
  • Test diagnostic messages using diag, note, and explain
  • Testing timeout with cmp_ok
  • Using 'like' to test without exact values
  • What is the status of the current test script?
• Test::NoWarnings
  • Silencing the noisy Dancer tests
• Test::Perl::Critic
  • Finish Perl::Critic cleanup, set up Test::Perl::Critic
  • Skip tests if prerequisites are not installed
• Test::Pod
  • Skip tests if prerequisites are not installed
• Test::Pod::Coverage
  • Skip tests if prerequisites are not installed
• Test::Simple
  • 2: Michael Schwern on test automation and Git
  • Introducing test automation with Test::Simple
  • Moving over to Test::More
  • Refactoring large test suite - separating data from code
  • Separating test data from test code
  • Test plan and test descriptions
  • Test without a Plan
  • Testing a simple Perl module
• Test::VERSION
  • Enforce the same version numbers in all the Perl modules in a distribution
• Test::Version
  • Skip tests if prerequisites are not installed
• Test::Warn
  • Test for expected warnings
  • Test for warnings in a Perl Module
• Test::WWW::Mechanize
  • Add some acceptance tests using search.cpan.org
• testing
  • 8: Chad (Exodist) Granum, author of the Fennec testing tool
  • Testing a simple Perl module
  • Testing with Perl
• Text::CSV
  • CSV - Comma Separated Values and Perl
  • How to read a CSV file using Perl?
  • Split CSV file into multiple small CSV files
• Text::CSV_XS
  • How to read a CSV file using Perl?
  • Process CSV file using Text::CSV_XS
  • Split CSV file into multiple small CSV files
• Text::Wrap
  • How to break lines with max width? (wrap)
• TextMade
  • Editors and IDEs for Perl developers
• TextPad
  • Editors and IDEs for Perl developers
• The Arrow Operator
  • The Arrow Operator
• threads
  • Can't use Net::Appliance::Session inside a thread
  • Is it possible to share a FILEHANDLE between Threads?
  • threads: Free to wrong pool
• tie
  • tie
• tied
  • tied
• time
  • Testing sessions by mocking time
  • The year of 19100
  • The year of 19100
  • time
• Time::HiRes
  • How to check if a child process is still running in Perl?
  • The year of 19100
• Time::Local
  • Time::Local - Day '31' out of range 1..30
• Time::Piece
  • Exception handling in Perl: How to deal with fatal errors in external modules
• times
  • times
• TO_JSON
  • Add a date stamp to the items in the database
• to_json
  • Get CPANstats from MetaCPAN using cron
• TODO
  • TODO - testing a bug or a future feature
• topic
  • $_ the default variable of Perl
• TPF
  • Unofficial information about The Perl Foundation Grants
• tr
  • Replace character by character (transliterate) using tr of Perl
• tr///
  • tr///
• transform
  • Transforming a Perl array using map
• Travis-CI
  • Enable Travis-CI for Continuous Integration
  • Skip tests if prerequisites are not installed
  • Using Travis-CI and installing Geo::IP on Linux and OSX
• trim
  • trim
  • trim - removing leading and trailing white spaces with Perl
• true
  • Boolean values in Perl
  • True False
• truncate
  • truncate
• TSV
  • Multiple command line counters with plain TSV text file back-end
• tv
  • 10: Dave Miller, the leader of the Bugzilla project
  • 1: Jeffrey Thalhammer, author of Perl::Critic and Pinto
  • 2: Michael Schwern on test automation and Git
  • 3: Dave Rolsky, author of DateTime and tons of other modules
  • 4: Tadeusz Sośnierz author of the Perl 6 Pod Parser and Panda, the Perl 6 module installer
  • 5: Stevan Little, author of Moose and Moe
  • 6: John SJ Anderson, a biologist turned into sysadmin
  • 7: Jay Hannah, Chief Ticket Monkey of the Perl Mongers
  • 8: Chad (Exodist) Granum, author of the Fennec testing tool
  • 9: Neil Bowers - PAUSE and CPAN admin
• Twiggy
  • Asynchronous web application with PSGI and Twiggy
• type conversion
  • Automatic string to number conversion or casting in Perl
• Typeglobs and Filehandles
  • Typeglobs and Filehandles
• Ubuntu
  • Deploying Python with uWSGI and Nginx on Ubuntu 13.10
• uc
  • How to check if a string is all upper case (lower case) characters?
  • String functions: length, lc, uc, index, substr
  • uc
• ucfirst
  • ucfirst
• Ultra Edit
  • Editors and IDEs for Perl developers
• umask
  • umask
• undef
  • Boolean values in Perl
  • How to eliminate a value in the middle of an array in Perl?
  • How to return nothing (or undef) from a function in Perl?
  • Scalar values and variables
  • Scalar variables
  • Use of uninitialized value
  • undef
  • undef
  • undef on Perl arrays and hashes
  • undef, the initial value and the defined function of Perl
• Unicode
  • How to create an Indian Rupee symbol with Perl code
  • What is Unicode
  • What is a text file and what is a binary file?
• uninitialized value
  • Use of uninitialized value
• uniq
  • Unique values in an array in Perl
  • Unique values in an array reference in Perl
• unique
  • Unique values in an array in Perl
  • Unique values in an array reference in Perl
• UNITCHECK
  • UNITCHECK
• UNIX
  • Download and install Perl
• unknown warnings
  • Unknown warnings category
• unless
  • Statement modifiers: reversed if statements
• unlink
  • How to remove, copy or rename a file with Perl
  • Unix and DOS commands
  • unlink
• unpack
  • Read fixed width records - using unpack
  • unpack
• unpairs
  • Operations on value-pairs in Perl
• unshift
  • Manipulating Perl arrays: shift, unshift, push, pop
  • shift and unshift
  • unshift
• untie
  • untie
• update
  • Updating MongoDB using Perl
• upsert
  • Command line counter with MongoDB as storage
• URL
  • How does the world wide web work?
• use
  • How to change @INC to find Perl modules in non-standard locations
  • How to create a Perl Module for code reuse?
  • What is the difference between require and use? What does import do?
  • use
• use vars
  • Package variables and Lexical variables in Perl
  • Variable declaration in Perl
• UTF-8
  • How to check if a string is all upper case (lower case) characters?
  • Open and read from text files
  • What is Unicode
  • What is a text file and what is a binary file?
  • Writing to files with Perl
• utf8
  • input must be 8 bytes long at DES.pm line 58. while using Net::SFTP
• UTF8
  • How to create an Indian Rupee symbol with Perl code
• Util::Any
  • List and Array Utilities in Perl
• utime
  • utime
• uWSGI
  • Deploying Python with uWSGI and Nginx on Ubuntu 13.10
• v5.10
  • Smart Matching in Perl 5.10
  • Switching in Perl 5.10
  • What's new in Perl 5.10? say, //, state
• Vagrant
  • Upgrade Vagrant Perl Development Environment
  • Vagrant Perl Development Environment (VirtualBox)
• value
  • Hashes in Perl
• values
  • How to sort a hash in Perl?
  • How to sort a hash of hashes by value?
  • values
• ValuesAndExpressions::ProhibitAccessOfPrivateData
  • Private Member Data shouldn't be accessed directly - encapsulation violation
• variable
  • $_ the default variable of Perl
• Variable names
  • Variable names
• vars
  • Variable declaration in Perl
• VCS
  • How to convince Meta CPAN to show a link to the version control system of a distribution?
• vec
  • vec
• Venn
  • Venn diagram with SVG
• version
  • How to compare version numbers in Perl and for CPAN modules
  • Perl::Version vs version confusion
• Version Strings
  • Version Strings
• video
  • Advanced Perl Maven video course
  • Beginner Perl Maven video course
  • Perl Maven Products
  • Perl videos and screencasts
• vim
  • Editors and IDEs for Perl developers
  • Perl Editor
• VirtualBox
  • Vagrant Perl Development Environment (VirtualBox)
• VPS
  • Getting started with Perl Dancer on Digital Ocean
• VSTRING
  • ref - What kind of reference is this variable?
• wait
  • How to check if a child process is still running in Perl?
  • Using fork in Perl to spread load to multiple cores
  • wait
• waitpid
  • How to check if a child process is still running in Perl?
  • Using fork in Perl to spread load to multiple cores
  • waitpid
• wantarray
  • How to return nothing (or undef) from a function in Perl?
  • wantarray
  • wantarray - returning list or scalar based on context
• warn
  • Warning when something goes wrong
  • warn
• warnings
  • Always use strict and use warnings in your perl code!
  • Argument ... isn't numeric in numeric ...
  • Can't locate ... in @INC
  • How to capture and save warnings in Perl
  • Installing and getting started with Perl
  • Name "main::x" used only once: possible typo at ...
  • Possible precedence issue with control flow operator
  • Safety net (use strict; use warnings;)
  • Test for warnings in a Perl Module
  • Unknown warnings category
  • Use of uninitialized value
  • use strict; and warnings; but no diagnostics
• wc -l
  • Show number of files in a directory tree using Shell
  • Show number of files in several directory trees using Shell
• weaken
  • Eliminate circular reference memory-leak using weaken
• web
  • Web sites powered by Perl with Open Source code-base
• Web::Query
  • Web Scraping TED - list of talks
• WebService::GData
  • Fetching data from YouTube using Perl
• WebService::GData::YouTube
  • Fetching data from YouTube using Perl
• wget
  • A Simple way to download many web pages using Perl
• when
  • Switch-Case statement in Perl 5
  • Switching in Perl 5.10
• while
  • while loop
  • while loop
• while (1)
  • while loop
• Win32::IEAutomation
  • Can't locate Object method "cells" via Win32::IEAutomation
• Windows
  • Download and install Perl
• WNOHANG
  • How to check if a child process is still running in Perl?
• wrap
  • How to break lines with max width? (wrap)
• write
  • Writing to files with Perl
  • write
• write_file
  • How to replace a string in a file with Perl
• WWW::Gittip
  • Web scraping with HTML::TreeBuilder
• WWW::Mechanize
  • Checking a valueless checkbox with WWW::Mechanize
  • How to download a Perl module from CPAN
  • Using object oriented modules
• x
  • /x modifier for verbose regexes
  • Scalar variables
  • String operators
  • String operators: concatenation (.), repetition (x)
• x_contributors
  • Adding list of contributors to the CPAN META files
• xls
  • How to create an Excel file with Perl?
• xlsx
  • How to create an Excel file with Perl?
• XML
  • Count elements using XML::XPath
  • Data Serialization in Perl
  • How does the world wide web work?
  • How to preserve XML::Simple element order
  • XML and Perl
  • XML::Simple sorting
  • XML::Writer examples
• XML::LibXML
  • How to preserve XML::Simple element order
• XML::Simple
  • How to preserve XML::Simple element order
  • XML::Simple sorting
• XML::Writer
  • XML::Writer examples
• XML::XPath
  • Count elements using XML::XPath
  • cpan install XML::XPath
• XMP
  • Perl syntax to inject external XMP data into image files
• xor
  • Logical Operators in Perl
• y
  • Replace character by character (transliterate) using tr of Perl
• y///
  • y///
• YAML
  • Data Serialization in Perl
  • Profiling and 100 times speed improvement
  • YAML vs YAML::XS inconsistencies (YAML::Syck and YAML::Tiny too)
• YAML::Syck
  • YAML vs YAML::XS inconsistencies (YAML::Syck and YAML::Tiny too)
• YAML::Tiny
  • YAML vs YAML::XS inconsistencies (YAML::Syck and YAML::Tiny too)
• YAML::XS
  • Profiling and 100 times speed improvement
  • YAML vs YAML::XS inconsistencies (YAML::Syck and YAML::Tiny too)
• YouTube
  • Fetching data from YouTube using Perl
• yum
  • Installing modules from the OS vendor
• {}
  • Perl 5 Regex Cheat sheet
  • Perl 5 Regex Quantifiers
  • Scope of Variables
• |
  • Perl 5 Regex Cheat sheet
• |=
  • Avoid (unwanted) bitwise operators
• ||
  • How to set default values in Perl
  • Logical Operators in Perl
• ||=
  • Avoid (unwanted) bitwise operators
  • How to set default values in Perl
  • What's new in Perl 5.10? say, //, state
• ~~
  • Smart Matching in Perl 5.10
  • Switch-Case statement in Perl 5