Checks whether supervise(8) is running.
svok service
svok checks whether supervise(8) is successfully running in the directory named service.
It silently exits 0 if supervise(8) is successfully running. It silently exits 100 if supervise(8) is not successfully running.
supervise(8), svc(8), svstat(8), svscanboot(8), svscan(8), readproctitle(8), fghack(8), pgrphack(8), multilog(8), tai64n(8), tai64nlocal(8), setuidgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8)
http://cr.yp.to/daemontools.html