Perl

Perl is a programming language created in 1987 by Larry Wall.

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Perl is a family of high-level, general-purpose, interpreted, dynamic programming languages. The languages in this family include Perl 5 and Perl 6. Though Perl is not officially an acronym, there are various backronyms in use, including "Practical Extraction and Reporting Language". Read more on Wikipedia...

Perl website
Perl downloads page
Perl Wikipedia page
Perl docs
Perl specs
Perl mailing list
There are at least 169,830 Perl repos on GitHub
Perl first developed in Unisys
PLDB estimates there are currently 13k job openings for Perl programmers.
file extensions for Perl include pl, pm, t, pod, al, cgi, fcgi, perl, ph, plx and psgi
The Google BigQuery Public Dataset GitHub snapshot shows 69k users using Perl in 102k repos on GitHub
Check out the 83 Perl meetup groups on Meetup.com.
There are 15,510 members in the Perl subreddit
There are 2,433 Project Euler users using Perl
In the 2021 StackOverflow developer survey Perl programmers reported a median salary of $80,000. 2% of respondents reported using Perl. 2,028 programmers reported using Perl, and 1,175 said they wanted to use it
Explore Perl snippets on Rosetta Code
Perl on HOPL
Perl ranks #15 in the TIOBE Index
CodeMirror package for syntax highlighting Perl
Monaco package for syntax highlighting Perl
Pygments supports syntax highlighting for Perl
GitHub supports syntax highlighting for Perl
PLDB has 4 Jupyter Kernels for Perl: metacpan.org, github.com, github.com, github.com
There is a central package repository for Perl
Annual Reports for Perl
Release Notes for Perl
Events page for Perl
Frequently Asked Questions for Perl
Indeed.com has 8,795 matches for "perl engineer".
perl.org was registered in 1995
See also: (38 related languages)PEARL, C, Lisp, Pascal, sed, CoffeeScript, ECMAScript, Falcon, Groovy, JavaScript, Julia, LPC, Perl 6, PHP, Python, Ruby, PowerShell, Unix, Bourne shell, Regular Expressions, Unicode, Haskell, Parrot, DTrace, JSON, awk, Fortran, S-expressions, Yacc, Bison, SQL, HTML, XS, RFC, JVM, APL, Perl Data Language, Pod

Example from Riju:

print("Hello, world!\n");

Example from hello-world:

#!/usr/bin/perl
print "Hello World\n";

Example from the Hello World Collection:

# Hello world in perl

print "Hello World!\n";

Example from Linguist:

#!/usr/local/bin/perl
print "Perl\n"

Example from Wikipedia:

#!/usr/bin/perl
use strict;
use warnings;
use IO::Handle;

my ( $remaining, $total );

$remaining = $total = shift(@ARGV);

STDOUT->autoflush(1);

while ( $remaining ) {
    printf ( "Remaining %s/%s \r", $remaining--, $total );
    sleep 1;
}

print "\n";

Perl Keywords

__DATA__ else lock qw __END__ elsif lt qx __FILE__ eq m s __LINE__ exp ne sub __PACKAGE__ for no tr and foreach or unless cmp ge package until continue gt q while CORE if qq xor do le qr y

Feature	Supported	Token	Example
Scientific Notation	✓
Binary Literals	✓		# 0b[01]+(_[01]+)*
Integers	✓		# \d+(_\d+)*
Floats	✓		# (?i)(\d(_\d)\.\d+(_\d)\|\d+(_\d)\.\d+(_\d)*)(e[+-]?\d+)?
Hexadecimals	✓		# 0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*
Octals	✓		# 0_?[0-7]+(_[0-7]+)*
Conditionals	✓
While Loops	✓
Print() Debugging	✓	print
Range Operator	✓		# https://users.cs.cf.ac.uk/Dave.Marshall/PERL/node38.html @array = (1..10);
Operator Overloading	✓
Multiple Inheritance	✓
File Imports	✓		use Digest::MD5 'md5_hex';
Directives	✓		# In Perl, the keyword "use", which imports modules, can also be used to specify directives, such as use strict; or use utf8; use utf8;
Here Document	✓
Line Comments	✓	#	# A comment
MultiLine Comments	✓	=begin =cut
Comments	✓		# This is a comment in perl =begin comment This is all part of multiline comment. You can use as many lines as you like These comments will be ignored by the compiler until the next =cut is encountered. =cut
Partial Application	✓		sub first-and-last ( $first, $last ) { say "Name is $first $last"; } my &surname-smith = &first-and-last.assuming( *, 'Smith' ); &surname-smith.( 'Joe' ); # OUTPUT: «Name is Joe Smith␤»
Regular Expression Syntax Sugar	✓		print "Hello World".match(/\w/)
Strings	✓		"hello world"
Case Insensitive Identifiers	X
Semantic Indentation	X

Perl - Programming language

Language features