First read the first file into a hash, with the first column as the key. Then iterate over the seond file line by line, and see if the first column exist in the hash, and if yes, retrieve the rest of the line from the first file.

perlintro should get you started, if you troubles somewhere along the way, feel free to ask (and show the code you're having problems with).

Perl 6 - second systems done right

In reply to Re: Two files; if cells match then copy over other columns by moritz
in thread Two files; if cells match then copy over other columns by Renyulb28

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