I downvoted you here, i strongly believe that these kind of questions can be found if a little effort would be put in searching older nodes, google, perldoc, books etc. (and so you learn more too!)
This is imho not a question belonging here anymore (and cirtenly not at The Monastery Gates), thinking, reading and searching should be done before asking, this is lazy.

In reply to Re: Match upper and lower case by jbrugger
in thread Match upper and lower case by benlaw

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