Shane Devereaux ([log in to unmask]) wrote: : Abbot and Costello meet Unix : Costello calls Abbott with some questions about UNIX: : Costello: Hey, Abbott...what is the command that will tell me the : revision code of a program ? : Abbott: Yes, that's correct. Well, I learned something about UNIX from this, but not what the author intended. It turns out "yes" is also a UNIX command. Costello: Hey, Abbott, is there a command to be repetitively affirmative? Abbott: Yes. Costello: What is it? Abbott: No. Yes! Or how about ... Costello: There is a command to return exit status zero. Abbott: True. Costello: Then there must be a command to return exit status one. Abbott: False. etc. Walter