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...

• the Perl website
• the Perl Wikipedia page
• the Perl docs
• the Perl specs
• the 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 is listed on HOPL
• Perl ranks #15 in the TIOBE Index
• There is a CodeMirror package for syntax highlighting Perl
• There is a 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(Link)
• Release Notes for Perl(Link)
• Events page for Perl(Link)
• Frequently ask questions(FAQ) page and Forums for Perl(Link)
• 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
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• Improve our Perl file

Keywords in Perl

_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

Language features

# 0b[01]+(_[01]+)*

# \d+(_\d+)*

# (?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?

# 0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*

# 0_?[0-7]+(_[0-7]+)*

# https://users.cs.cf.ac.uk/Dave.Marshall/PERL/node38.html
@array = (1..10);

use Digest::MD5 'md5_hex';

# In Perl, the keyword "use", which imports modules, can also be used to specify directives, such as use strict; or use utf8;
use utf8;

# A comment

# 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

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␤» 

print "Hello World".match(/\w/)

"hello world"

Books about Perl on goodreads

Books about Perl from ISBNdb

Publications about Perl from Semantic Scholar

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