rsd [rsd options] --version
rsd [rsd options] --check-version
rsd [rsd options] --install PATH

--usage | --help | -h
	Display help usage.
--version
	Return the RSD version.
--check-version
	Compares the local version to the one in the repository.
--install PATH
	Install RSD in the provided PATH
--debug LEVEL | -d LEVEL
	Sets the debug level
--lib-dir PATHs | -l PATHs | --libdir PATHs | --lib PATHs
	Coma separated paths to search for libraries.
--no-local | -nl
	Do not switch to a local rsd copy on the same directory.
--completion
	Support for bash completion.
In completion mode, no command or action is actually executed.
No command file should exec in global space.