A UNIX command that concatenates files and prints the result backwards. Presumably a pun on cat. This command is very obscure but surprisingly useful. The GNU version is, of course, hilariously overfeatured, allowing such things as specifying the line separator as a regexp.

Tac (?), n. [Cf. Tack, n., 4.] O. Eng.Law

A kind of customary payment by a tenant; -- a word used in old records.

Cowell. Burrill.


© Webster 1913.

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