RedHat 9 (Linux i386) - man page for rev (redhat section 1)

REV(1)					     BSD General Commands Manual				       REV(1)

NAME
     rev -- reverse lines of a file

SYNOPSIS
     rev [file]

DESCRIPTION
     The rev utility copies the specified files to the standard output, reversing the order of characters in every
     line.  If no files are specified, the standard input is read.

BSD
						    March 21, 1992						  BSD