my @TimeArray = localtime(time);
my $year = sprintf ("%04d",$TimeArray[5]+1900);
my $monthasnum = sprintf ("%02d",$TimeArray[4]+1);
my $day =  sprintf ("%02d",$TimeArray[3]);
my $hour = sprintf ("%02d",$TimeArray[2]);
my $minute = sprintf ("%02d",$TimeArray[1]);
my $datestamp =  "$year"."_"."$monthasnum"."_"."$day"."_"."$hour" ."_"."$minute" ;

##</code><code>##

use POSIX;

my $datestamp = strftime( "%Y_%m_%d_%H_%M", localtime );