Rerun Bash Commands with History Expansions
History expansions let you interact with bash's history. For example, if you forgot to run a command with sudo, you can sudo !! to rerun the last command with it. !$ can be used to access the last argument of the last command.
Alberto Maturano
~ 6 years ago
There is an error in the transcription. It says:
[...] If I do
!! sudo, you can see it runs it again. Now it works.
Should be:
[...] If I do
sudo !!, you can see it runs it again. Now it works