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;

[download]

You should have:

        close INFILE;

[download]

In reply to Re^3: Mass file renaming by revdiablo
in thread Mass file renaming by interstellar

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