perl

The Perl 5 language interpreter. More information: <https://www.perl.org>.

Install

All systems
curl cmd.cat/perl.sh
Debian Debian
apt-get install perl-base
Ubuntu
apt-get install perl-base
Alpine
apk add perl
Arch Arch Linux
pacman -S perl
image/svg+xml Kali Linux
apt-get install perl-base
CentOS
yum install perl-base
Fedora
dnf install perl-base
Windows (WSL2)
sudo apt-get update sudo apt-get install perl-base
OS X
brew install perl
Raspbian
apt-get install perl-base
Docker
docker run cmd.cat/perl perl powered by Commando

The Perl 5 language interpreter. More information: <https://www.perl.org>.

  • Print lines from `stdin` [m/] matching regex1 and case insensitive [/i] regex2:
    perl -n -e 'print if m/regex1/ and m/regex2/i'
  • Say [-E] first match group, using a regexp, ignoring space in regex [/x] :
    perl -n -E 'say $1 if m/before ( group_regex ) after/x'
  • [-i]n-place, with backup, [s/] substitute all occurrence [/g] of regex with replacement:
    perl -i'.bak' -p -e 's/regex/replacement/g' path/to/files
  • Use perl's inline documentation, some pages also available via man on linux:
    perldoc perlrun ; perldoc module ; perldoc -f splice; perldoc -q perlfaq1

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