While the error output of service sshd blah prints: /etc/rc.d/sshd: unknown directive 'blah'. Usage: /etc/rc.d/sshd [fast|force|one|quiet](start|stop|restart|rcvar|enable|disable|delete|enabled|describe|extracommands|configtest|keygen|reload|status|poll) service itself does not document that it provides the commands 'enable', 'disable' and 'enabled' rc.subr documents enabled, but not 'enable' and 'disable'. in rc.subr's code, the function documentation for rc_run_command, looks like the copy in the man page, and also only documents enabled, but not enable and disable.