Doubt in "FOR command in DOS"

Question

All,
I have set of files starting with the name, e.g. xxx and the extension depends on the date. For example the extension of the current date is xxx.518. 5 is the month and 18 is the day of month.
I am creating one application that would delete the xxx.* files depends on the retention days. If I give retention days as 10, it will keep 10 xxx.*(e.g. 508 to 518) files and delete remaining files.
So I am using FOR command of DOS. I am using runtime.getRuntime to execute this.
I am using
(e.g.)
FOR %%V in (pinpad.50?, pinpad.51?) do (command)
Using this I can get only the files not to delete. But I want the filenames which needs to be deleted from the directory. (One option is there to give the range of all the files to delete in the SET. But it is some what difficult.)
My question is
Can we give get the filenames not specified in the IN SET (pinpad.50?, pinpad.51?) ?
Is it possible ??
namanc

Answer 1

I agree with others, this should be done using Java...
This said, you can use the following BATCH files to achieve your goal (not tested, sorry):
BDELFILES.BAT
   rem TESTS AND DELETES FILES IF NEEDED
   rem
   FOR %%F in (*.*) call BDELFILE.BAT %%F
BDELFILE.BAT
   rem TESTS AND DELETES A FILE IF NEEDED
   rem file name is in parameter 1
   rem
   set TODEL=1
   FOR %%F in (*.50? *.51?) do IF "%1" == "%%F" set TODEL=0
   IF "%%TODEL" == "1" DEL %%F