The following bash script can help you removing your cached files on git if you add your file into .gitignore and GIT is already tracking them.
#!/bin/bash cat .gitignore | egrep -v "^#|^$" | while read line; do if [ -n "$line" ]; then OLD_IFS=$IFS; IFS="" for ignored_file in $( git ls-files "$line" ); do git rm --cached "$ignored_file" done IFS=$OLD_IFS fi done
So, create a .sh file on your folder and copy the content above.
Save your file and add x permission:
chmod +x remove_cached.sh
Then run your script:
After run this script you shouldn’t see files you want to ignore under your .gitignore. You can delete the .sh file afterwards.
Source: shell script, How to run a script on mac