If you are in the middle of typing a UNIX or Linux password but suddenly you have mistyped the incorrect password. If you push the enter button, the system will prompt that you have entered a wrong password or your account will be lock (if the login retries is exceeded). Yups, you can clear the incorrect password that you have entered by pressing the CTRL + U key. Immediately after the CTRL + U key, you can retype the entry while at the same prompt.
login as: root Using keyboard-interactive authentication. Password: Last login: Sat Jan 29 21:33:09 2011 from 10.10.10.100 hostname:~ #
