Erase a word in the terminal

 <ALT> <BACKSPACE>

hit BACKSPACE more than once to delete more words

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Execute a command without saving it in the history

$ <space>command

Prepending one or more spaces to your command won't be saved in history.

Useful for passwords on the commandline.


-- 
Regards,
Tha.Suresh
http://thasulinux.wordpress.com
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