Sorry, it's still not clear enough for me:
All lines of all files are in just 1 array (@contact_tape).
How do you know, what file the lines came from originally?
What EXACTLY is the content of your array?
Looping through the array you MUST somehow realise the moment you change from lines of one file to lines of the next file ...
Imre

In reply to Re: Re: (Re:)* duplicate lines in array by pelagic
in thread duplicate lines in array by harry34

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