Net::Telnet

#!/usr/bin/perl -w
#file:remoteps.pl

use strict;
use Net::Telnet;
use constant HOST => 'phage.cshl.org';
use constant USER => 'lstein';
use constant PASS => 'xyzzy';

my $telnet=Net::Telnet->new(HOST);
$telnet->login(USER,PASS);
my @lines=$telnet->cmd('ps -ef');
print @lines;