Ever executed a command for which you needed root permissions (e.g. via
sudo) but find yourself needing to retype the whole thing?
I just found a very useful terminal command: If you want to repeat your last used command, you can just type
!! in the terminal.
This is very useful in the form
This way, you can easily re-execute a command for which you did not have enough permissions, with the required root permissions.
I found this tip in a Stackoverflow discussion which contains some other good commands as well. Check it out!
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