Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site hou3c.UUCP
Path: utzoo!linus!philabs!seismo!harpo!eagle!mhuxl!houxm!hocda!hou3c!ka
From: ka@hou3c.UUCP (Kenneth Almquist)
Newsgroups: net.jokes.d
Subject: Re: ROT 13 ???
Message-ID: <150@hou3c.UUCP>
Date: Thu, 22-Dec-83 13:39:32 EST
Article-I.D.: hou3c.150
Posted: Thu Dec 22 13:39:32 1983
Date-Received: Fri, 23-Dec-83 04:45:18 EST
References: <190@hou2d.UUCP>
Organization: Bell Labs, Holmdel, NJ
Lines: 5

You can use the tr(1) command to rotate a joke:

  tr '[a-z][A-Z]' '[n-z][a-m][N-Z][A-M]' < joke > rotated

Kenneth Almquist