No, I can't write the script for you because (1) Perl Monks is not a free code-writing service, (2) you would not learn anything from having someone else do the work for you, and (3) you did not provide enough details about your input files (e.g. how are your columns delimited).

But, of course, many monks here, including myself, are willing to help if you show some effort at trying to do it.

In reply to Re^3: merge multiple files based on a common column and each having 2k-3k columns by Laurent_R
in thread merge multiple files based on a common column and each having 2k-3k columns by nbdas

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