.TH supervise 8
.SH NAME
supervise \- starts and monitors a service.
.SH SYNOPSIS
.B supervise
.I s
.SH DESCRIPTION
.B supervise
switches to the directory named
.I s
and starts ./run. It restarts ./run if ./run exits. It pauses for a second
after starting ./run, so that it does not loop too quickly if ./run exits
immediately. 

If the file
.IR s /down
exists,
.B supervise
does not start ./run immediately. You can use
.BR svc (8)
to start ./run and to give other commands to
.BR supervise .

.B supervise
maintains status information in a binary format inside the directory
.IR s /supervise,
which must be writable to
.BR supervise .
The status information can be read by
.BR svstat (8).

.B supervise
may exit immediately after startup if it cannot find the files it needs in
.I s
or if another copy of
.B supervise
is already running in
.IR s .
Once
.B supervise
is successfully running, it will not exit unless it is killed or specifically
asked to exit. You can use
.BR svok (8)
to check whether
.B supervise
is successfully running. You can use
.BR svscan (8)
to reliably start a collection of
.B supervise
processes. 
.SH SEE ALSO
svc(8),
svok(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)

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