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2 days agoTo add to this one, it also supports more than just the previous command (which is what !! means), you can do like sudo !453 to run command 453 from your history, also supports relative like !-5. You can also use without sudo if you want which is handy to do things like !ls for the last ls command etc. Okay one more, you can add :p to the end to print the command before running it just in case like !systemctl:p which can be handy!
Hah I am glad it was helpful! Glad to share, I always felt like half the point of learning is to share what you learned. That is one of my favorite “hidden gems” for lack of a better term that can be a real time saver.
Bonus just for more fun: you can use
cd -to switch back to the directory you were last in after changing directories, it toggles the top two paths in the stack. It is similar to how pushd/popd work if you have you used those. I use that one a ton, there are fancier tools now but that one works everywhere.Oh also, anyone on a Mac needs to know about pbcopy, Linux has xclip and I don’t remember what the Wayland analog is.