-d | 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. |
-f, --force | If the Git configuration variable clean. requireForce is not set to false, git clean will refuse to delete files or directories unless given -f, -n or -i. Git will refuse to delete directories with .git sub directory or file unless a second -f is given. |
-i, --interactive | Interactively prompts the removal of each file. |
-n, --dry-run | Only displays a list of files to be removed, without actually removing them. |
-q,--quiet | Only display errors, not the list of successfully removed files. |