From your other posts in this thread, especially this one, I get the feeling that you are searching the file for the literal string "username|pin" - is that correct? Because if so, your pattern is not correct, as it will match any line that contains either the username or the pin due to the alternation |. You should probably be using the pattern /^\Q$FORM{user}|$FORM{pin}\E$/ instead (see quotemeta for what \Q...\E does). Otherwise, you've built yourself a huge security hole if someone sets their password to, for example "."!

Could you show us an example of what your input file actually looks like?

In reply to Re: perl if statement by Anonymous Monk
in thread perl if statement by Drsin

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