chdir $main::logFolder or die "can't cd";
# I am not sure what to populate here for $yesterday 
$Yesterday;
foreach (glob("*")) {
	$age = -M;
	if ($age==1)  {
		#rename Log File to .log.yyyymmdd
		rename ($_, $_ .$Yesterday"
	}
	else if($age > 14) {
		unlink $_;
	}