($sec,$min,$hour,$mday,$mon,$year) = localtime(time);
$mon = (1,2,3,4,5,6,7,8,9,10,11,12)[$mon];

if($mon  < 10){$mon  = "0" . $mon;}           # add a leading zero to 
+one-digit months
if($mday < 10){$mday = "0" . $mday;}    # add a leading zero to one-di
+git days
if($hour < 10){$hour = "0" . $hour;}    # add a leading zero to one-di
+git hours
if($min  < 10){$min  = "0" . $min;}           # add a leading zero to 
+one-digit minutes
if($sec  < 10){$sec  = "0" . $sec;}            # add a leading zero to
+ one-digit seconds

$dirname  = substr($year,1,3) . $mon . $mday . $hour . $min . $sec;

##</code><code>##

my @time = localtime();
$time[4]++; # convert from 0 based index to 1 based index
$time[5]-=100; # 2digits=subtract 100 or 4digits=add 1900
$time[$_] = $time[$_]<10? "0".$time[$_]:$time[$_] for (0..5);

$dirname = $time[5].$time[4].$time[3].$time[2].$time[1].$time[0];