supervise(8)                         System Manager's Manual                         supervise(8)



NAME
       supervise - starts and monitors a service.

SYNOPSIS
       supervise s

DESCRIPTION
       supervise  switches  to the directory named 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 s/down exists, supervise does not start ./run immediately. You can use svc(8)
       to start ./run and to give other commands to supervise.

       supervise maintains status information in a binary format inside  the  directory  s/super‐
       vise,  which  must  be  writable to supervise.  The status information can be read by svs‐
       tat(8).

       supervise may exit immediately after startup if it cannot find the files it needs in s  or
       if another copy of supervise is already running in s.  Once supervise is successfully run‐
       ning, it will not exit unless it is killed or specifically asked  to  exit.  You  can  use
       svok(8) to check whether supervise is successfully running. You can use svscan(8) to reli‐
       ably start a collection of supervise processes.

SEE ALSO
       svc(8), svok(8), svstat(8), svscanboot(8), svscan(8),  readproctitle(8),  fghack(8),  pgr‐
       phack(8),  multilog(8),  tai64n(8), tai64nlocal(8), setuidgid(8), envuidgid(8), envdir(8),
       softlimit(8), setlock(8)

       http://cr.yp.to/daemontools.html



                                                                                     supervise(8)