Any ideas on how I could do this. I know this is a RDFM question but I am going on vacation today and I need to get it done quick.
Really? So, you spend time typing in your question in a tiny input field in a webpage, risking you are getting wrong, bogus and inefficient answers when a simple 
    perldoc -q duplicate

[download]
would have given you the answer?

Abigail

In reply to Re: Replacing all but one duplicate lines by Abigail-II
in thread Replacing all but one duplicate lines by johnirl

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