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Perl

Practical Extraction and Report Language

1987 ., Larry Wall, Usenet

:

shellsedawkLisp

Pearl

Larry Wall

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:

rn - Usenet client

patch

Perl

1. 2. 3. () Larry Wall, Camel book

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Perl

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Perl

TIMTOWTDI

"There is more than one way to do it": " -"

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DWIM (Do What I Mean - " , ")

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if ($a==5) {$b=4;}$b=4 if ($a==5);($a==5) && $b=4;

################################

unless ($a==5) {$b=4;}$b=4 unless ($a==5);($a==5) || $b=4;

open FILE, "data.txt";

$a = ;print $a;

@b = ;print @b;

close FILE;

CPAN

Comprehensive Perl Archive Network Perl

www.cpan.org

2010-12-18 online since 1995-10-268158 MB 228 mirrors8630 authors 18922 modules

http://xkcd.com/224/

Perl

1. Perl

2. Perl is write-only: /-/

CPAN

TIOBE.com

Perl is write-only

Perl Best Practices

Perl::Tidy

Perl::Critic

Test::*

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