All Perl Solutions on Gang of Coders

Total of 193 Perl Solutions

Why is XML::Simple Discouraged?

Xml Perl Xml Simple

How do you capture stderr, stdout, and the exit code all at once, in Perl?

Perl Stdout Exit Code

How do I get the length of a string in Perl?

How can I use a variable in the replacement side of the Perl substitution operator?

Regex Perl Substitution

How can I see if a Perl hash already has a certain key?

Perl Hash Key Lookup

In Perl, is it better to use a module than to require a file?

How can I run a Perl script on Mac OS X?

Mac OS: /usr/bin/env: bad interpreter: Operation not permitted

Macos Perl Bash Command Line-Interface Env

How to decrypt hash stored by bcrypt

How can I require an optional Perl module if installed?

Perl Module Require

Should we hire someone who writes C in Perl?

How can I compile my Perl script so it can be executed on systems without 'perl' installed?

What should I use for a Perl script's shebang line?

How do I break out of a loop in Perl?

Perl Loops Break Strict

Are Perl regexes turing complete?

Regex Perl Turing Complete

Why is `\s+` so much faster than `\s\s*` in this Perl regex?

Regex Perl Regex Greedy

"Variable length lookbehind not implemented" but it isn't variable length

Character Translation using Python (like the tr command)

Python Perl Tr Transliteration

Neatest way to remove linebreaks in Perl

Perl Line Breaks

In Perl, is there a built in way to compare two arrays for equality?

Arrays Perl Compare Match

How to properly deobfusacte a Perl script?

Perl Deobfuscation

What is the best way to slurp a file into a string in Perl?

Perl String File Io File

How do I find a user's home directory in Perl?

Perl Home Directory Tilde Expansion

Python for a Perl programmer

How to get the name of Perl script that is running

How to check if a Perl script doesn't have any compilation errors?

Perl Compilation

When should I use the & to call a Perl subroutine?

Perl Subroutine

How can I start an interactive console for Perl?

Perl Console Interactive Read Eval-Print-Loop

How can I find the number of keys in a hash in Perl?

Should I use YAML or JSON to store my Perl data?

Negative regex for Perl string pattern match

Perl - If string contains text?

String Perl String Matching

Today's Date in Perl in MM/DD/YYYY format

Perl Date Formatting

Why is this regular expression so slow in Java?

Java Python Regex Performance Perl

How do I convert a date/time to epoch time (unix time/seconds since 1970) in Perl?

Perl Datetime Parsing Date Time

Is there a better way to determine elapsed time in Perl?

How do I include a Perl module that's in a different directory?

What is the difference between parent and base in Perl 5?

Perl Subclass Pragma

What is the difference between "||" and "or" in Perl?

What is the difference between `$this`, `@that`, and `%those` in Perl?

Perl Types Sigils

Usage of ‘if’ versus ‘unless’ for Perl conditionals

Perl If Statement Readability

Regex Group in Perl: how to capture elements into array from regex group that matches unknown number of/multiple/variable occurrences from a string?

Regex Perl Grouping Match

Tips for keeping Perl memory usage low

Variable-length lookbehind-assertion alternatives for regular expressions

Php Javascript Python Regex Perl

Perl subroutine arguments

Regex to match any character including new lines

What are the differences between Perl, Python, AWK and sed?

Python Perl Sed Awk Language Comparisons

How can I check if a Perl array contains a particular value?

Perl Arrays Comparison

Find size of an array in Perl

What's the difference between Perl's backticks, system, and exec?

How do I use boolean variables in Perl?

How can I quickly sum all numbers in a file?

Linux Perl Bash Shell Awk

What's the easiest way to install a missing Perl module?

Perl Module Cpan

How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searched for?)

Perl Perl Module

What is the difference between 'my' and 'our' in Perl?

How do I perform a Perl substitution on a string while keeping the original?

Regex Perl Replace

How do I compare two strings in Perl?

Perl String Comparison

How do you round a floating point number in Perl?

Perl Floating Point Rounding

How can I print the contents of a hash in Perl?

Perl Hash Printing

Seeking clarification on apparent contradictions regarding weakly typed languages

C#Java Python Perl Weakly Typed

How do I get the full path to a Perl script that is executing?

Perl Path Location

How can I delete a newline if it is the last character in a file?

Linux Perl Shell Awk Sed

Rename Files and Directories (Add Prefix)

Linux Perl Shell

How do I remove duplicate items from an array in Perl?

Perl Arrays Unique Duplicates

while (1) Vs. for (;;) Is there a speed difference?

C++Perl Optimization Performance

How to fix a locale setting warning from Perl

What exactly does Perl's "bless" do?

Best way to give a variable a default value (simulate Perl ||, ||= )

Php Perl Operators Default Value

How do I update all my CPAN modules to their latest versions?

Hidden features of Perl?

Perl Hidden Features

How can I pass command-line arguments to a Perl program?

Perl Command Line

How to match any non white space character except a particular one?

How do I enter a multi-line comment in Perl?

Perl Comments Multiline Perl Data-Structures

Check whether a string contains a substring

String Perl String Matching

In Perl, how can I read an entire file into a string?

String Perl Slurp

Why does modern Perl avoid UTF-8 by default?

Perl Unicode Utf 8

Escaping a forward slash in a regular expression

Regex Perl Escaping

How can I output UTF-8 from Perl?

Perl Unicode Utf 8

How do I tell CPAN to install all dependencies?

Perl Dependencies Cpan

Perl flags -pe, -pi, -p, -w, -d, -i, -t?

Perl Command Line Flags

grep -P no longer works. How can I rewrite my searches?

Macos Perl Shell

How can I check if a file exists in Perl?

Why are Perl 5's function prototypes bad?

Perl Function Prototype

Should I choose ActivePerl or Strawberry Perl for Windows?

Windows Perl Strawberry Perl Activeperl

What's the safest way to iterate through the keys of a Perl hash?

Perl Hash Iteration Each

Why use strict and warnings?

How to extract string following a pattern with grep, regex or perl

Regex Perl Sed Html Parsing Text Extraction

What is the proper way to check if a string is empty in Perl?

Perl String Comparison

Best way to iterate through a Perl array

Arrays Perl Iteration

Differences between Perl and PHP

Why is this program valid? I was trying to create a syntax error

How can I combine hashes in Perl?

Perl Dictionary Hash Merge

How can Perl's print add a newline by default?

Perl Printing Newline

How can I troubleshoot my Perl CGI script?

How to reliably guess the encoding between MacRoman, CP1252, Latin1, UTF-8, and ASCII

Java Python Perl Macos Character Encoding

What is the meaning of @_ in Perl?

Which version of Perl should I use on Windows?

Windows Perl Debugging Strawberry Perl

Easy way to print Perl array? (with a little formatting)

How are nested capturing groups numbered in regular expressions?

Java .Net Regex Perl Language Agnostic

How do I get a list of installed CPAN modules?

How should I use the "my" keyword in Perl?

Perl Scope Declaration

How to match a substring in a string, ignoring case

Turning multiple lines into one comma separated line

Linux Perl Unix Sed Awk

How do I tell if a variable has a numeric value in Perl?

How can I convert a string to a number in Perl?

String Perl Floating Point

How do I daemonize an arbitrary script in unix?

Perl Unix Scripting Sysadmin Daemon

How can I remove text within parentheses with a regex?

Python Regex Perl

What are the Python equivalents to Ruby's bundler / Perl's carton?

Python Ruby Perl Virtualenv Pip

How to efficiently calculate a running standard deviation

Python Perl Statistics

In Perl, what is the difference between a .pm (Perl module) and .pl (Perl script) file?

Perl Perl Module

Regular expression to validate username

Java Php Html Regex Perl

Use of 'use utf8;' gives me 'Wide character in print'

Perl Unicode Utf 8

In Perl, how can I concisely check if a $variable is defined and contains a non zero length string?

Perl build, unit testing, code coverage: A complete working example

Perl Unit Testing Build Process Build Automation Code Coverage

Perl: function to trim string leading and trailing whitespace

Why don't I get any syntax errors when I execute my Python script with Perl?

How can I use CPAN as a non-root user?

What is the best way to delete a value from an array in Perl?

Is there a Perl shortcut to count the number of matches in a string?

Arrays Regex Perl Perl4

In Perl, how do I create a hash whose keys come from a given array?

Arrays Perl Hash

How do I sleep for a millisecond in Perl?

Multiline search replace with Perl

How can I de-install a Perl module installed via `cpan`?

Perl Module Cpan

The recognizing power of "modern" regexes

Regex Perl Theory Context Free-Grammar Language Theory

String compare in Perl with "eq" vs "=="

What does the <<'m'=~m>> syntax mean in perl?

How to print lines between two patterns, inclusive or exclusive (in sed, AWK or Perl)?

Shell Perl Awk Sed Pattern Matching

Command line: search and replace in all filenames matched by grep

Linux Perl Awk Sed Grep

Programmatically read from STDIN or input file in Perl

How do I enable automatic folds in Vim?

Javascript Perl Vim Folding

Perl: if ( element in list )

Find everything between two XML tags with RegEx

Java Php Regex Xml Perl

Automatically get loop index in foreach loop in Perl

"inappropriate ioctl for device"

Quickly getting to YYYY-mm-dd HH:MM:SS in Perl

Perl Datetime Formatting Timestamp

Is there any use for Bash scripting anymore?

Python Perl Bash Scripting Comparison

How can I call a shell command in my Perl script?

Is Try::Tiny still recommended for exception handling in Perl 5.14 or later?

Perl Exception Handling

Text processing - Python vs Perl performance

Python Regex Performance Perl Text Processing

What does shift() do in Perl?

How do I include functions from another file in my Perl script?

how to remove the first two columns in a file using shell (awk, sed, whatever)

Perl Shell Awk Sed Cut

How can I install a specific version of a set of Perl modules?

Perl Version Module Cpan

What does $1 mean in Perl?

How can I get a call stack listing in Perl?

Perl Stack Trace Callstack

What is the difference between my and local in Perl?

Which cpan installer is the right one? (CPAN.pm/CPANPLUS/cpanminus)

Installing modules using Strawberry Perl

Windows Perl Cpan Perl Module Strawberry Perl

How to replace a string in an existing file in Perl

How can I check if a Perl module is installed on my system from the command line?

Perl Command Line Perl Module

How can I install and use ack library on Windows?

Windows Perl Ack

How can I store regex captures in an array in Perl?

Regex Perl Arrays

Submit form and stay on same page?

Javascript Html Perl

How do I get a file's last modified time in Perl?

Perl read line by line

What's the difference between exists and defined?

How to match once per file in grep?

Regex Perl Shell Unix Grep

Why learn Perl, Python, Ruby if the company is using C++, C# or Java as the application language?

C#Java Python Ruby Perl

How can I do unit testing in Perl?

Perl Unit Testing Testing

How do I tell what type of value is in a Perl variable?

Using output from a previous job in a new one in a GitHub Action

Perl Github Actions

How can I repeat a string N times in Perl?

String Perl Operators Repeat

How can I install a CPAN module into a local directory?

Perl Module Installation Cpan

Match whitespace but not newlines

What's the difference between a hash and hash reference in Perl?

Perl Hash Language Features Hash Reference

How can I list all of the files in a directory with Perl?

How can I elegantly call a Perl subroutine whose name is held in a variable?

Why are scripting languages (e.g. Perl, Python, and Ruby) not suitable as shell languages?

Python Ruby Perl Bash Shell

How do I "use" a Perl module in a directory not in @INC?

Perl Module Relative Path

Converting relative path into absolute path?

Perl Unix Shell Path Absolute Path

Perl 5.20 and the fate of smart matching and given-when

Perl Smartmatch

How can I find the version of an installed Perl module?

Perl Module Version Cpan

How should I do integer division in Perl?

Perl Integer Division

What regex can match sequences of the same character?

What reasons are there to prefer glob over readdir (or vice-versa) in Perl?

Perl Glob Readdir

What does "0 but true" mean in Perl?

Perl Integer Boolean

How can I use a variable for a regex pattern without interpreting meta characters?

Python slow read performance issue

Python Performance Perl Io

How can I detect the operating system in Perl?

Perl Cross Platform

Does Perl have an enumeration type?

How to see if a directory exists or not in Perl?

Perl File Io Directory

What's the difference between Carp/Croak, Cluck/Confess, and verbose options?

Perl Error Handling Carp

How can my Perl script find its module in the same directory?

Perl Module Directory

How can I run a Perl script as a system daemon in linux?

Linux Perl Startup Daemon Shutdown

Should I use \d or [0-9] to match digits in a Perl regex?

How can I find out where a Perl module is installed?

Perl Path Module Config

How to implement an IMP function that returns a large struct type determined at run-time?

Objective C Perl Objective C-Runtime

Why is "!!" considered bad form in Perl?

Perl Boolean Type Conversion

What are your suggestions for an ideal Vim configuration for Perl development?

Perl Vim Configuration

How can I tell if a Perl module is core or part of the standard install?

Perl Module Standard Library

how to check if a hash is empty in perl

Does python have a "use strict;" and "use warnings;" like in perl?

Python Perl Warnings Strict

"vertical" regex matching in an ASCII "image"

Php .Net Regex Perl Pcre