Remove a file from git indexing and search

Assume you create a file named note.txt in you git repository. At some point, you added it to the index and committed the change. Later, however, you realize that you do not need to version note.txt, you can delete it from indexing and search by the follwong command:

$ git rm --cached note.txt
rm 'note.txt'

This will add file note.txt into stage area again, you can commit this deletion:

$ git commit -m "Deleted note.txt from indexing and search"

After commit, the note.txt file should be still in your repository, but removed from git indexing and search. In order to remove it from versioning, add it to .gitignore:

$ echo "note.txt" >> .gitignore