Linux Tips I Wish I Knew Long Ago – Ctrl-U erases everything to the left

In this list here: http://en.wikipedia.org/wiki/Table_of_keyboard_shortcuts#Command_line_shortcuts

The biggest advantage of Ctrl-U is when you are typing a password and you make a mistake and need to start over, no more hitting backspace over and over again to make sure you are back at the beginning. It clears the line and you just go.

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