Hi, I want to make my script execute instead of a unix command which is available in /usr3/tuxedo/bin/. The command is tmshutdown. This should be done without loggin in as the root. When the users issue tmshutdown from the command prompt my script should be executed instead of the executable lying in the above specified path. I cannot change the .mycshrc or .cshrc files as i dont have p[ermissions to do that. Please help me Regards, Hari "The true measure of a man is how he treats someone who can do him absolutely no good." Musically With Love , Hari Prashanth __________________________________________ Yahoo! DSL ? Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/