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TAC(1) NetBSD General Commands Manual TAC(1)
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tac -- display file in reverse
tac [file ...]
tac (cat backwards) outputs the contents of each of the specified files,
or the standard input if no files are specified, in reverse line order to
the standard output.
The tac utility exits 0 on success, and >0 if an error occurs.
The tac utility doesn't support any of the options of GNU tac.
NetBSD 9.99 June 20, 2020 NetBSD 9.99