If you are on a really fast and busy machine that may reuse the id within a second just add.
use Time::HiRes qw/time/;
On my machine that adds 6 decimal places to the time, just try to repeat the combination with that.

In reply to Re: Unique filenames in a shared directory (The Kitchensink) by repson
in thread Unique filenames in a shared directory (The Kitchensink) by Corion

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