As a software programmer you often have to search and replace a specific string in multiple files because of a refactoring or just improving a variable or function name.
Normally you can use your IDE or your editor for this. But in bigger codebases with thousand or million lines of code it can be very slow. Neither do IDEs work with remote SSH-sessions. In such situations the command-line is pretty handy. It is available everywhere and it is fast.
The following command replaces
new in all
*.go files in
the current directory:
I use this often in combination with
git. First i commit my latest changes, so i
have a clear state. Then i issue the above
command. Afterwards i check the changes in the files with
git diff. If i do not like them, reverting is possible with