Can you point to a definitive definition of "filename extension" that says that spaces aren't allowed? Are there any other characters that are not valid in the "extension"?

You suggest a method of verification that assumes a particular operating system I think as the OS that I typically use says "unknown" for the file type of both files named Foo.Bar and Foo. Bar

When someone talks about "filename extensions", are they implicitly referring to a particular operating system? I don't think so as the term, while it originated on systems that were hobbled by their choice of filesystem implementation, is used today when referring to filenames that were constructed on any operating system/file system.

duff

In reply to Re^2: AWTDI: Renaming files using regexp by duff
in thread AWTDI: Renaming files using regexp by nimdokk

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