# The clean command The clean command is used to delete the generated book and any other build artifacts. ```bash mdbook clean ``` #### Specify a directory The `clean` command can take a directory as an argument to use as the book's root instead of the current working directory. ```bash mdbook clean path/to/book ``` #### --dest-dir The `--dest-dir` (`-d`) option allows you to override the book's output directory, which will be deleted by this command. Relative paths are interpreted relative to the book's root directory. If not specified it will default to the value of the `build.build-dir` key in `book.toml`, or to `./book`. ```bash mdbook clean --dest-dir=path/to/book ``` `path/to/book` could be absolute or relative.