#!/usr/bin/perl open(EXECOPU, '| execopu -text') or die("Can't run execopu: $!\n"); my @site_numbers = (7, 12); print EXECOPU "cell\n"; foreach my $site_number (@site_numbers) { print EXECOPU <<"EOF"; u csno = $site_number ccuoosmin_3g1x = "" ccuoos_3g1x = "" u EOF }