Consider the frequently asked question, How do I find lines which exist in both file1 and file2? Some of the answers to this question will be useful to you when reading in a bunch of file names and paths from File::Find and trying to detect which ones are duplicates.

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TTTATCGGTCGTTATATAGATGTTTGCA

In reply to Re: Listing all files with same filename by TomDLux
in thread Listing all files with same filename by titto

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