Cleaning up after a script on shut down

[Ray Parrish]

Hello,

I am wondering if there is a way to catch the fact that Ubuntu is 
shutting down from a bash script, and do some clean up for the script 
during shut down.

I just need to remove two files on shutdown, but their names change with 
the PID of the script.

Thanks for any help you can be.

Later, Ray Parrish

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