open SAVERR, ">&STDERR";
open STDERR, ">>err.log";

		# Perl can run the shell #
		if (open(PIPE, "$cmd <$tempfile |"))
		{
			sleep(2);
			if (-z './err.log')
			{
				close SAVERR;
				process(*PIPE);
			}
			
			# but there is a message in STDERR #
			else
			{
				#
				print LOG "ERROR: see err.log, exiting...\n";
				#
				close STDERR;
				open  STDERR, ">&SAVERR";
				die "Killed.\n";
			}
		}