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       upsc - example lightweight UPS client


       upsc -l | -L [host]

       upsc ups [variable]


       upsc is provided as a quick way to poll the status of a UPS server.  It
       can be used inside shell scripts and other programs that need UPS  data
       but don't want to include the full interface.


       -l host
              List  all  UPS  names configured at host, one name per line. The
              hostname defaults to "localhost".   You  may  optionally  add  a
              colon and a port number.

       -L host
              As above, list all UPS names configured at host, including their
              description provided by the remote upsd(8) from ups.conf(5). The
              hostname  defaults  to  "localhost".   You  may optionally add a
              colon and a port number to override the default port.

       ups    Display the status of that UPS.  The format for this  option  is
              upsname[@hostname[:port]].  The default hostname is "localhost".

              Display the value of  this  variable  only.   By  default,  upsc
              retrieves  the  list  of  variables  from  the  server  and then
              displays the value for  each.   This  may  be  useful  in  shell
              scripts to save an additional pipe into grep.


       To list all variables on an UPS named "myups" on a host called "mybox",
       with upsd(8) running on port 1234:

           $ upsc myups@mybox:1234
           battery.charge: 100.0
           battery.voltage: 13.9
           battery.voltage.nominal: 13.6
           . . .

       To  list  the  UPSes  configured  on  this  system,  along  with  their

           $ upsc -L
           apc: Back-UPS 500
           ppro2: Patriot Pro II

       To  retrieve the status for all UPSes connected to mybox, using Bourne-
       shell syntax:

           $ for UPS in `upsc -l mybox:1234`; do
               upsc $UPS ups.status


       upsc will either print a list of UPS names, a  list  of  all  supported
       variables  and  their  values  on the UPS, or an error message.  If you
       receive an error, make sure you have  specified  a  valid  UPS  on  the
       command line, that upsd(8) is really running on the other host and that
       no firewalls are blocking you.


       Earlier versions of this program used  the  upsfetch  library  and  UDP
       sockets  to  talk to upsd.  This version of upsc uses the new upsclient
       library, which only talks TCP.  This is why upsct no longer exists.



   Internet resources:
       The NUT (Network UPS Tools) home page:

                                Mon Mar 12 2007