That will fail on file name ending in "IQ-000", as you demand that the sixth character from the end isn't equal to an I.

You seem to be changing your requirements over time. This makes it hard to be helpful. As things stand now, I suggest: 

    /^PH.*(?:[^I][^H]|I[^HF])-000$/

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Abigail

In reply to Re: old Perl regex problem by Abigail-II
in thread old Perl regex problem by GhodMode

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