pgrphack - runs a program in a separate process group.
pgrphack child
pgrphack runs child in a new process group.
supervise(8), svc(8), svok(8), svstat(8), svscanboot(8), svscan(8),
readproctitle(8), fghack(8), multilog(8), tai64n(8), tai64nlocal(8),
setuidgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8)
http://cr.yp.to/daemontools.html
pgrphack(8)