#!/usr/bin/perl -w
## An example of how to daemonize.  See the IPC::Run LIMITATIONS section for
## some reasons why this can be a bit dangerous.
use strict;
use IPC::Run qw( run close_terminal );
run(
    sub {
        # ... your code here ...
        sleep 15;
    },
    init => sub {
        close_terminal;
        exit if fork;
    }
);