How to prevent a user from using ctrl-c to stop a script?

Question

I load a script in .bash_profile and this script will ask for right password whenever a user opens a terminal window. If the user enters a wrong code, the scrip

Answer 1

You can always trap SIGINT:

trap 'echo got SIGINT' SIGINT

Once you're done, reinstall the default handler again with

trap SIGINT

See the POSIX spec for trap for details. This works in all Bourne shells, not just bash.