Thank you! I tried several of these changes, (like undef of several array and scalar variables), but my coding is quite rusty, because I am still getting the modified script to exit with error code 9 on both Mac local machine and UNIX cluster - running out of RAM (I think)

I have to brush up on Perl coding quite a bit it seems :)

In reply to Re^2: Reduce RAM required by onlyIDleft
in thread Reduce RAM required by onlyIDleft

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