Delete Backs up to erase one character. Backspace Mapped as a backspace key, displaying ^H. Ctrl-u Erases the command line. Ctrl-w Erases the last word on the command line. Ctrl-s Stops flow of output ...

When you enter commands in the Terminal, they are saved in a history that you can scroll through by pressing the up and down arrows. This tip prevents the same item from being saved to the history ...