examples/reap_child_process.pl
#!/usr/bin/perl
use strict;
use warnings;

print "parent $$\n";
my $pid = fork();
die "Could not fork $!\n" if not defined $pid;

if (not $pid) {
    print "in child: $$\n";
    exit;
}

print "In parent $$ child: $pid\n";
sleep 1;
wait();
system "ps -lef | grep perl";
sleep 10;