Say I started a su command, and I want to cancel it.  Control+C doesn't work for su like it does for sudo...  I have to finish the prompt (either by getting the password wrong enough times or by getting it right).Is there something that I can type to kill a password prompt?
How can I CTRL^C out of a password prompt?
bash;shell;command line;kill;authentication
su is running with elevated privileges, and you are not seeing it respond to ^C (which sends a signal with your privileges).  You could su to another shell and kill it from the other shell.  Also (depending on the system), it might respond to SIGHUP (a hangup signal) if you closed the terminal session where the awkward su is in progress.There's more than one way that su can ignore your ^C, e.g.,establishing signal handlers orrunning under a different controlling terminal.A quick read of Debian's su seems that it uses the latter.  Your system of course may be different.Further reading:/bin/su no longer listens to SIGINT!how to terminate some process which is run with sudo with kill