OK - there should be a way to do this: I have a bunch of files in directory 'A' and copies of MOST of these files in directory 'B.' What is a command which would remove files in 'A' with the same names as the ones which appear in 'B' (so I am only deleting the extra copies?) The files which are to remain in 'A' are all ones which do not appear in 'B.' GLL