Read all files, storing the values in a single hash, then sort-reverse the hash keys and take the first.

Your question does not consider the case in which more than one file has the highest value in the first column. If you want in the result all the values corresponding to the highest key, make that a HoA.

Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."

In reply to Re: asking for suggestions about hash files by psini
in thread asking for suggestions about hash files by Anonymous Monk

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