my $pid = fork();  die "Couldn't fork: $!" unless defined $pid;

if ($pid) {
    # parent
    print "Location: $outpage_url\n\n";
    
} else { # $pid == 0
    # child
    open STDOUT, ">>", "/path/to/some/logfile" or warn "Couldn't redirect STDOUT: $!";
    open STDERR, ">>", "/path/to/some/logfile" or warn "Couldn't redirect STDERR: $!";

    exec "$bin/somescript.pl";
    exit; # just in case the exec failed
}