If you're in the csh, do a:

command >& /dev/null

to redirect both stdout and stderr to /dev/null..

As for sh, I think it's more like:

command 2>&1 > /dev/null

but you might want to check the man pages first.

I hope this helps.

Later.

-- 
Colin Wood                                      ender@is.rice.edu
Consultant                                        Rice University
Information Technology Services                       Houston, TX