i am trying to do the following command set bell-style none
You'll need to use your favourite editor to add that line to /etc/inputrc if you want this to affect all users of the system, or edit your own ~/.inputrc file if it's just for you. It's best to try things out for your own account first before making changes that affect everyone.
P.S. Please do not top-post on this mailing list (see http://en.wikipedia.org/wiki/Top_posting).
Paul.
