.cshrc efficiency note

[Mike Muuss]

If your .cshrc contains a like like:

set prompt=\!\ "`hostname`>"\ 

then this will cause the /bin/hostname program to be run FOR EVERY
PROMPT that the CSH prints out!  This can be a non-trivial load if
20-30 people are doing this.  Instead, I recommend the two line replacement:

set hostname=`hostname`
set prompt=\!\ "$hostname"\>\ 

since it is unlikely that the host name will change during a login
session.
	-Mike