in reply to Re^2: Mass file renaming
in thread Mass file renaming

This isn't quite what I had in mind when I said small example, but I guess it'll do. One thing I see right away is that you're not closing the file after you open it. As previously mentioned, Windows doesn't like to rename open files. Where you have:

close $open;

You should have:

close INFILE;

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Re^4: Mass file renaming
by interstellar (Initiate) on Nov 08, 2005 at 08:43 UTC
    The "close" does it...(goes PURPLE with embarrassment and goes off to say ten "Hail Randall"s and three "Our Larry"s)

    I'm amazed at the interest in this problem and everyone's willingness to help me out. Note to self to contribute wisdom if ever possible.

    Thank you very much indeed...