I need a batch file script which delete a file within D:\NEW\MINE\K based on the modified date.if the modified date is older than 3 months then the file is deleted.

If you scout around thiis forum you'll see that 'date math' comes up at least a few times a month. It's never a happy ending.

To make any headway, you'll need to giive EXACT OS and date layout.

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Well i am quiet new to batch scripting , so i would be really helpful if you can provide a batch file for my requirement.
My OS is WINDOWS XP
Modified Date Layout : dd/mm/yyyy format like 2/12/2008.
This modified date should be compared to the current date , and if it is found to be 3 months older, then it should be deleted.

Do a DIR and post a few lines.

Miine shows:

13-02-2008  16:31                  816 newfile
13-02-2008  16:29                  766 MYFILE
13-02-2008  16:31                  258 AB.BAT
::=====================

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Why do people always want to use the wrong tool for their required task?

You should use a more appropriate language, such as Perl or Python or VB.

Well the format is same that you have provided. i am not quiet acquainted with the other languages like perl. i would like to know, if this can be done using a batch file. if yes could you please provide me one to meet the requirements.

I'm sure M2 will be able to work up a batch file, but in the mean time, here's an example Perl script.

#!perl
use strict;
use warnings;
use constant DAYS => 90;
foreach my $file ( <D:/NEW/MINE/K/*> ) {
   if ( -M $file > DAYS ) {
      print "Deleting $file\n";
      unlink $file or warn "failed to delete $file $!\n";
   }
}

The definition/calculation of a month could vary a bit since a month varies between 28 - 31 days. I chose to use 90 days to equal 3 months

thanx fishmonger for the perl code, but actually i require a batch file script,if any one of u can provide me one.

sorry guys , i am not being able to work with that perl script. batch file , i can work on. i would be happy , if you can meet my requirement