Perl

Perl is a highly capable, feature-rich programming language with over 30 years of development. Famous for its powerful text processing capabilities, regular expressions, and system administration tooling, Perl remains a staple tool for modern DevOps and scripting workflows.

Installation

Perl usually comes pre-installed on Ubuntu systems, but you should ensure that essential development headers and CPAN package management tools are available.

apt update
apt install -y perl build-essential cpanminus

cpanminus (cpanm) provides a fast, zero-configuration CLI tool for installing third-party Perl modules from CPAN.

Verification

Check the installed Perl version:

perl -v

Writing and Running Code

Create a Perl script named hello.pl:

#!/usr/bin/env perl
use strict;
use warnings;

print "Hello from Perl in TIDE!\n";

Executing the Script

Run the script using the perl interpreter:

perl hello.pl

Making the Script Executable

Make the file executable and run it directly:

chmod +x hello.pl
./hello.pl

One-Liner Commands

Perl is well known for concise command-line one-liners:

perl -e 'print "Hello from Perl in TIDE!\n";'

Installing CPAN Modules

Install modules from CPAN using cpanm:

cpanm JSON LWP::UserAgent

Official Resources

• Official Website