Yes, AnomalousMonk, you're right, I did not pay attention to the fact that the code is using numeric comparison. I'm doing this type of things regularly, but usually with the string eq operator, even when the data string is numeric (say a customer number or a phone number with only digits). Reducing the number of operations made in the while (<$fh>) loop makes some sense when removing duplicates from a 500-million-line file.

In reply to Re^4: How to Save a variable outside of a loop by Laurent_R
in thread How to Save a variable outside of a loop by Calebros

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