Git: How to remove ignored files from your repository's directory

转自:  https://makandracards.com/makandra/17529-git-how-to-remove-ignored-files-from-your-repository-s-directory

When you have files in your 

.gitignore

 they won't be considered for changes, but still you might
want to get rid of them, e.g. because they clutter your file system.

While a regular 

git clean

 will ignore them as well, passing the 

-x

 switch
changes that:

COPY

git clean -x

If you want to see what would happen first, make sure to pass the 

-n

 switch for a dry run:

COPY

git clean -xn

Clean even harder by passing the 

-f

 (force cleaning under certain circumstances; I think this is
also required by default) or 

-d

 (removes directories) switches:

COPY

git clean -xdf

Careful: You may be ignoring local config files like 

database.yml

 which
would also be removed. Use at your own risk.