version control
Since no answer suggests the exact option combination that I use, here it is:
git clean -dxn . # dry-run to inspect the list of files-to-be-removed git clean -dxf . # REMOVE ignored/untracked files (in the current directory) git checkout — . # ERASE changes in tracked files (in the current directory)
This is the online help text for the used git clean options:
-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.
-x
Don’t use the standard ignore rules read from .gitignore (per directory) and $GIT_DIR/info/exclude, but do still use the ignore rules given with -e options. 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.
-n
Don’t actually remove anything, just show what would be done.
-f
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 within the .git subdirectory or file, unless a second -f is given.