You have a repo and quite some developers have cloned the repo and working on it. Now you want to add a file to gitignore which is already checked-in or tracked by Git.(The file is already commited into the repo)
Below are the steps on how to ignore this file (lets say the filename is config.py):
Add it to .gitignore:
$ echo "config.py" >> .gitignore
| #!/usr/bin/env bash | |
| # Source: https://gist.github.com/jordan-brough/48e2803c0ffa6dc2e0bd | |
| # See also: https://stackoverflow.com/a/25095062/58876 | |
| # Download this script as "git-recent" (no extension), chmod it to be executable and put it in your | |
| # path somewhere (e.g. /usr/bin). You can then use it via `git recent` from inside any git repo. | |
| # Examples: |