'\" t .TH "SYSTEMD\-AC\-POWER" "1" "" "systemd 255" "systemd-ac-power" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" systemd-ac-power \- Report whether we are connected to an external power source .SH "SYNOPSIS" .HP \w'\fBsystemd\-ac\-power\fR\ 'u \fBsystemd\-ac\-power\fR [OPTIONS...] .SH "DESCRIPTION" .PP \fBsystemd\-ac\-power\fR may be used to check whether the system is running on AC power or not\&. By default it will simply return success (if we can detect that we are running on AC power) or failure, with no output\&. This can be useful for example to debug \fIConditionACPower=\fR (see \fBsystemd.unit\fR(5))\&. .SH "OPTIONS" .PP The following options are understood: .PP \fB\-v\fR, \fB\-\-verbose\fR .RS 4 Show result as text instead of just returning success or failure\&. .sp Added in version 253\&. .RE .PP \fB\-\-low\fR .RS 4 Instead of showing AC power state, show low battery state\&. In this case will return zero if all batteries are currently discharging and below 5% of maximum charge\&. Returns non\-zero otherwise\&. .sp Added in version 254\&. .RE .PP \fB\-h\fR, \fB\-\-help\fR .RS 4 Print a short help text and exit\&. .RE .PP \fB\-\-version\fR .RS 4 Print a short version string and exit\&. .RE .SH "EXIT STATUS" .PP On success (running on AC power), 0 is returned, a non\-zero failure code otherwise\&. .SH "SEE ALSO" .PP \fBsystemd\fR(1)