The watch command
The watch
command is useful when you want your book to be rendered on every file change. You could repeatedly issue mdbook build
every time a file is changed. But using mdbook watch
once will watch your files and will trigger a build automatically whenever you modify a file.
Specify a directory
The watch
command can take a directory as an argument to use as the book’s root instead of the current working directory.
mdbook watch path/to/book
--open
When you use the --open
(-o
) option, mdbook will open the rendered book in your default web browser.
--dest-dir
The --dest-dir
(-d
) option allows you to change the output directory for the book. 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
.