Ubuntu School – sudo Your Last Command

Sometimes we just forget that we need to specify elevated privileges on our Ubuntu machines. I do it all the time, particularly when I’m setting up a new machine.

Thankfully there’s a shortcut for those of us who are forgetful. If I want to restart the box I can use a command like:

“`
shutdown -r now
“`

But of course that command requires elevated privileges:

“`
shutdown: Need to be root
“`

With the fantastic `!!` argument for sudo you can repeat your last terminal command:

“`
sudo !!
“`

Now you can quickly and efficiently re-run that last command you forgot to sudo.