How often have you typed in a command and then realized that you forgot to type sudo. This will help you, don/t need to type the long long command.
type the following !! will replace your last command
$ sudo !!
Example
$ vi /etc/apt/sources.list
this will open file as read only you need sudo to edit the file
$ sudo !!
this will expand your command automatically to
$ sudo vi /etc/apt/sources.list
Tuesday, January 13, 2009
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