$ perl -e' rand(10); if (my $pid = fork()) { waitpid($pid, 0); } local ($,, $\) = (", ", "\n"); print map int(rand(10)), 1..10; ' 8, 3, 9, 8, 8, 2, 3, 8, 4, 8 8, 3, 9, 8, 8, 2, 3, 8, 4, 8