Here's how to use Comm.pl, 
require "Comm.pl"
&Comm'init(1.8);
&set_traps;
$program=&open_proc("some program");
($success, $matched, $before_match, $after_match ) = &expect ( $progra
+m, 10(time out in sec), 'what you are expecting');
die "Time out\n" unless ($success);
print $program "What you want to send to the program\n";

[download]
I don't have time to test it, but if it doesn't work let me know and I will fix it.

In reply to Re: Interprocess Communication by c-era
in thread Interprocess Communication by radagast

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