$ cat hello.pl

=head1 NAME

hello.pl - say hello

=head1 DESCRIPTION

Example: perl hello.pl

=cut

use warnings;
use strict;

print "hello\n";
$
$
$ perldoc hello.pl

HELLO(1)              User Contributed Perl Documentation             HELLO(1)



NAME
       hello.pl - say hello

DESCRIPTION
       Example: perl hello.pl



perl v5.8.9                       2011-07-22                          HELLO(1)