Not implemented Remove untracked directories in addition to untracked files. If an untracked directory is managed by a different git repository, it is not removed by default. Use -f option twice if you really want to remove such a directory.

Not implemented Don't actually remove anything, just show what would be done.

Not implemented If the git configuration specifies clean.requireForce as true, 'git-clean' will refuse to run unless given -f or -n.

Not implemented Be quiet, only report errors, but not the files that are successfully removed.

Not implemented Don't use the ignore rules. This allows removing all untracked files, including build products. This can be used (possibly in conjunction with 'git-reset') to create a pristine working directory to test a clean build.

Not implemented Remove only files ignored by git. This may be useful to rebuild everything from scratch, but keep manually created files.