upscmd(8)

NAME

   upscmd - UPS administration program for instant commands

SYNOPSIS

   upscmd -h

   upscmd -l ups

   upscmd [-u username] [-p password] ups command

DESCRIPTION

   upscmd allows you to invoke "instant commands" in your UPS hardware.
   Not all hardware supports this, so check the list with -l to see if
   anything will work on your equipment.

   On hardware that supports it, you can use this program to start and
   stop battery tests, invoke a front panel test (beep!), turn the load on
   or off, and more.

OPTIONS

   -h
       Display the help message.

   -l ups
       Show the list of supported instant commands on that UPS. Some
       hardware may not support any of them.

   -u username
       Set the username for the connection to the server. This is
       optional, and you will be prompted for this when invoking a command
       if -u is not used.

   -p password
       Set the password to authenticate to the server. This is also
       optional like -u, and you will be prompted for it if necessary.

   ups
       Connect to this UPS. The format is upsname[@hostname[:port]]. The
       default hostname is "localhost".

UNATTENDED MODE

   If you run this program inside a shell script or similar to invoke a
   command, you will need to specify all of the information on the command
   line. This means using -u and -p. Otherwise it will put up a prompt and
   your program will hang.

   This is not necessary when displaying the list, as the username and
   password are not required for read-only mode.

   Moreover, if you run this program inside a shell script or similar, you
   should only consider using output from stdout, not stderr.

DANGEROUS COMMANDS

   Some drivers like apcsmart(8) have built-in paranoia for the dangerous
   commands like load.off. To make them actually turn off the load, you
   will have to send the command twice within a short window. That is, you
   will have to send it once, then send it again after 3 seconds elapse
   but before 15 seconds pass.

   This paranoia is entirely defined within the driver. upsd and upscmd
   have no control over the timing.

DIAGNOSTICS

   upscmd won't work unless you provide a valid username and password. If
   you get "access denied" errors, make sure that your upsd.users(5) has
   an entry for you, and that the username you are using has permissions
   to SET variables.

BUGS

   There is currently no way to tell the user when the driver requires
   confirmation to invoke a command such as load.off. Similarly, there is
   not yet a way to tell the user if a command succeeds or fails.

   This is on the list of things to fix in the future, so don't despair.
   It involves magic cookies.

SEE ALSO

   upsd(8), upsrw(8)

INTERNET RESOURCES

   The NUT (Network UPS Tools) home page: http://www.networkupstools.org/

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