Juicy lil' bytes

Execute Your Last Command With a Sudo Prefix Using a Bang Command

Need to re-run that last command with sudo? Check out this idiom.

The !! Bang Command

In your shell, the bang command !! re-runs your last command. If you need to re-run it with superuser privileges, you can prefix the !! bang command with sudo and go.

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sudo !!

No need to type sudo after using the up arrow and then navigating to beginning of the line. It’s a simple, time saving maneuver.

Source: softpanorama.org