Two quick terminal input manipulation commands today. The first is bangbang (
!! is a shortcut that means "substitute this with the last command run". It's most commonly used when you forget to
sudo a command.
If you want to make sure the command is right before executing it, you can add
:p to the end to say "print this" instead of "execute this".
[email protected]:~$ sudo !!:psudo apt-get install tmux
Then you can hit the up arrow and enter to run the command.
If you want a bit more versatility, you can use
^caret^substitution. This means "find this first string in the last command, replace it with the second one and run the command again".