#!/usr/bin/perl -w
print STDERR "$$\n";
`./my_program`;

##</code><code>##

(ulimit -u150; ./my_program)

##</code><code>##

Debian GNU/Linux, 2.6.18-iplus #1 SMP Wed Dec 12 14:35:52 CET 2007 i686 GNU/Linux
perl, v5.8.8 built for i486-linux-gnu-thread-multi