32v 1m rev
From Computer History Wiki
					REV(1) UNIX Programmer's Manual REV(1)
NAME
rev - reverse lines of a file
SYNOPSIS
rev [ file ] ...
DESCRIPTION
    _R_e_v copies the named files to the standard output, reversing
    the order of characters in every line.  If no file is speci-
    fied, the standard input is copied.

