I use vim or vi. There's a learning curve to it though. pico is a very easy-to-use editor if you've never used a command-line editor before.

After you've opened up an empty file: vi script.pl or pico script.pl, write some code:

use warnings;
use strict;

my $tired = 0;

if ($tired){
    print "goodbye, world!\n";
}
else {
    print "hello, world!\n";
}
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Now, save the file, exit the editor and run the script directly from the command line:

perl script.pl
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