Searching for files that don't end in a certain extension?

[yaruk]

Hi,

How would I search for all files that don't end in a certain extension?

[therube]

If you had a drive of MP3's (more generally, music) & you wanted to find all files that were not *.mp3:

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!.mp3

The '!' is a NOT operator (I suppose, at least it seemed to work).

You can also combine NOT's:

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!.mp3 !.mid !.m4a

So not mp3, not mid (midi), not m4a.
And it then might find ogg & wma, if you had any.