Perl scripts start with a shebang line and it's good practice to always include use strict and use warnings:

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

print "Hello, World!\n";

Run the script from the command line:

chmod +x hello.pl
./hello.pl
# or
perl hello.pl

The say function (use Perl 5.10+) is like print but adds a newline automatically:

use 5.010;
say "Hello from Perl " . $];   # $] holds the Perl version number

Perl is available on virtually every Unix-like system. Check your version:

perl --version