How to loop through files matching wildcard in batch file

I have a set of base filenames, for each name ‘f’ there are exactly two files, ‘f.in’ and ‘f.out’. I want to write a batch file (in Windows XP) which goes through all the filenames, for each one it should:

  • Display the base name ‘f’
  • Perform an action on ‘f.in’
  • Perform another action on ‘f.out’

I don’t have any way to list the set of base filenames, other than to search for *.in (or *.out) for example.

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