Using exit in a Bourne shell script

[Juergen Wagner]

How about 
	set ignoreeof
in your .cshrc. This will prevent you from doing what you're fearing, namely
logging out by hitting ^D. If you want to disable ^D just for the login shell,
you could do the "set ignoreeof" in .login, and "unset ignoreeof" in .cshrc.

You may also want to have some kind of depth count in your prompt line.

--Juergen
-- 
Juergen "Gandalf" Wagner,		   gandalf at csli.stanford.edu
Center for the Study of Language and Information (CSLI), Stanford CA