'\" t
.\"     Title: upsc
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 04/26/2022
.\"    Manual: NUT Manual
.\"    Source: Network UPS Tools 2.8.0
.\"  Language: English
.\"
.TH "UPSC" "8" "04/26/2022" "Network UPS Tools 2\&.8\&.0" "NUT Manual"
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.SH "NAME"
upsc \- example lightweight UPS client
.SH "SYNOPSIS"
.sp
\fBupsc\fR \-l | \-L [\fIhost\fR]
.sp
\fBupsc\fR \fIups\fR [\fIvariable\fR]
.sp
\fBupsc\fR \-c \fIups\fR
.SH "DESCRIPTION"
.sp
\fBupsc\fR 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\(cqt want to include the full interface\&.
.SH "OPTIONS"
.PP
\fB\-l\fR \fIhost\fR
.RS 4
List all UPS names configured at
\fIhost\fR, one name per line\&. The hostname defaults to "localhost"\&. You may optionally add a colon and a port number\&.
.RE
.PP
\fB\-L\fR \fIhost\fR
.RS 4
As above, list all UPS names configured at
\fIhost\fR, 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\&.
.RE
.PP
\fB\-c\fR \fIups\fR
.RS 4
Lists each client connected on
\fIups\fR, one name per line\&.
.RE
.PP
\fIups\fR
.RS 4
Display the status of that UPS\&. The format for this option is
\fIupsname[@hostname[:port]]\fR\&. The default hostname is "localhost"\&.
.RE
.PP
\fIvariable\fR
.RS 4
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\&.
.RE
.SH "EXAMPLES"
.sp
To list all variables on an UPS named "myups" on a host called "mybox", with upsd(8) running on port 1234:
.sp
.if n \{\
.RS 4
.\}
.nf
$ upsc myups@mybox:1234
battery\&.charge: 100\&.0
battery\&.voltage: 13\&.9
battery\&.voltage\&.nominal: 13\&.6
\&. \&. \&.
.fi
.if n \{\
.RE
.\}
.sp
To list the UPSes configured on this system, along with their descriptions:
.sp
.if n \{\
.RS 4
.\}
.nf
$ upsc \-L
apc: Back\-UPS 500
ppro2: Patriot Pro II
.fi
.if n \{\
.RE
.\}
.sp
To retrieve the status for all UPSes connected to mybox, using Bourne\-shell syntax:
.sp
.if n \{\
.RS 4
.\}
.nf
$ for UPS in `upsc \-l mybox:1234`; do
    upsc $UPS ups\&.status
done
.fi
.if n \{\
.RE
.\}
.sp
To list clients connected on "myups":
.sp
.if n \{\
.RS 4
.\}
.nf
$ upsc \-c myups
127\&.0\&.0\&.1
::1
192\&.168\&.1\&.2
.fi
.if n \{\
.RE
.\}
.SH "SCRIPTED MODE"
.sp
If you run this program inside a shell script or similar to get the list of devices and variables, you should only consider using output from stdout, not stderr\&.
.SH "DIAGNOSTICS"
.sp
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 \fBupsd\fR(8) is really running on the other host and that no firewalls are blocking you\&.
.SH "HISTORY"
.sp
Earlier versions of this program used the \fIupsfetch\fR library and UDP sockets to talk to upsd\&. This version of upsc uses the new \fIupsclient\fR library, which only talks TCP\&. This is why \fIupsct\fR no longer exists\&.
.SH "SEE ALSO"
.sp
\fBupsd\fR(8)
.SS "Internet resources:"
.sp
The NUT (Network UPS Tools) home page: http://www\&.networkupstools\&.org/