So why not code a test right into your script (maybe in a BEGIN{...} block) using Proc::PID::File?

    After all, that's the very first example in the Synopsis!

- - for posing a question without -- it appears -- even minimal effort on your part.

In reply to Re: Easiest way to protect process from duplication. by ww
in thread [Solved]Easiest way to protect process from duplication. by kazak

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