Possible Duplicate:
Keyboard shortcuts in Bash shell
Is there any way I can undo an auto-completion done by bash? For example:
$> ls first/second/t
<Presses tab>
$> ls first/second/third
<realizes it should be fourth and not third>
<presses backspace key till initial prompt is reached>
$> ls first/second/
Is there any way I can replace the irritating backspacing part with some cool combo which undoes the most recent auto-completion?