Issue
I'd like to know the shortest command for correcting a mistake in the previously executed command.
Given I executed the following command
cd /Users/USERNAME/Library/Preferences/ByHost
I would like to be able to execute a new command that takes the previous command, pipes it through grep or a similar Unix tool, and then executes. Something like this in (my admittedly uneducated) psuedo-command.
!! | xargs 's/$1/USERNAME/cirrostratus/g'
This command would execute
cd /Users/cirrostratus/Library/Preferences/ByHost
Alternately, piping a string, searching and replacing on it and executing in one line would be my second choice.
Solution
If you wanna replace a all occurences of a string (switch g) you'll need to write:
!!:gs/oldstring/newstring/
This will replace oldstring by newstring in you're last command and run them and store the result to history.
Otherwise: then syntaxe ^oldstring^newstring^ is a shortcut for:
!!:s/oldstring/newstring/
replacing only first found occurence of string.
Answered By - F. Hauri Answer Checked By - Clifford M. (WPSolving Volunteer)