add a new user to the system

EXAMPLES
	useradd -m <username>
		add a new user <username> to the system, add it to a new usergroup of the same name, create a home directory in the default location (usually /home/<username>)
	useradd --defaults
		output default values for e.g. home location, login shell, ...

FLAGS
	-m			create a home directory for the new user
	-G			comma-delimited list of groups to add the new user to
	-s			point to binary of the user's default login shell (bash by default)
	--defaults	output default values for e.g. home location, login shell, ...

RELATED
	passwd
	usermod
