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website/doc/src/cli/clean.md

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+# 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.