26 Jun 2021 14:19, you wrote to Oli:

 Ol>> make a copy before tossing?

 AI> That's what I am doing now. What a mess of stuff.. ;)

 AI> I am copying packets and bundles into a backup directory. A rather
 AI> crude cp command. I'm not sure what is going to happen with filename
 AI> collisions.

 AI> I was thinking others may have come up with a good way to accomplish
 AI> that.

Make your script create subdirectories YYYYMM (or even YYYYMMDD) and copy the files there.

(That's how I'm doing in Windows. Sorry I cannot help with Linux ATM.)

Carlos
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