Repeating a command with sudo

Sometimes I forget to run a command as sudo. Bash comes to help and can
repeat the previous command:

    $ pacman -Suy docker
    Sorry, you need to be root to execute docker.
    $ sudo !!
    sudo pacman -Suy docker
    [sudo] passord for jans:  
    ...
    $ 

!! can also be used to repeat the previous command.