The reason IPC examples are complicated is because IPC is complicated! Think about all the ways that either the parent or the child can end, and how each is to be notified of the other's death.
That said, you might be able to get away with the following (mostly pseudo-) code:
my $pid = fork();
if ($pid) {
# in the parent
wait for a keypress via your favourite method here
if an abort occurs..
kill 15, $pid; # sigspec to taste
exit; # parent is done
# you'll probably want POSIX WNOHANG here, otherwise waitpid will bl
+ock
waitpid, $pid # child exited normally
} elsif (defined $pid) {
# in the child
system("run_groovy_command");
exit; # tell daddy i'm done
} else {
die "Cannot fork: try spoon\n";
}
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