BASH history tricks
My most often used case for this is with git clone like so:
git clone host:~/repos/somerepos/mylongreponamethatidontwanttotypetwice
cd !$:tThe second command says !$ - Grab the last argument from the last command then :t - grab the 'tail' which, for a directory structure, is the last part of the path, you could also do :h to grab the directory structure up to the last part of the path
Other stuff
Everyone knows sudo !! to sudo the last command you executed but there are other tips like !git which is "Run the last git command you ran" or more usefully
!somecommand:gs/search/replaceWhich will run the previous somecommand, execute a global search/replace on the command string, then execute it
Finally
!somecommand:pWhich simply prints the last somecommand that was ran and places it at the top of your history so you can press up to execute it
Further reading https://www.youtube.com/watch?v=9wcBBuZ6H4w
Written by Shawn Biddle
Related protips
3 Responses
Also with bash you can repeat the last command while replacing a string within it. So if your last command was vi file.txt and now you realize you need to edit file2.txt you can type ^file^file2 ... I know it's not a great time-saver in this example, but if you have something hidden in a long command that you need to change it's a time-saver.
The only downside of ^^ is that it's not a global replace, so if you had
somecommand foo bar foobarthen did
^foo^blahYou'd get
somecommand blah bar foobarinstead of
somecommand blah bar blahbar
but I want it to be global!
still a great trick that will stop me for hitting up and arrowing around to replace a single word. works in zsh as well
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