'\" t .\" Title: brightnessctl .\" Author: Mykyta Holubakha .\" Language: English .\" .TH "BRIGHTNESSCTL" "1" "VERSION" "brightnessctl" "brightnessctl" .SH "NAME" brightnessctl \- read and control device brightness .SH "SYNOPSIS" .sp \fBbrightnessctl\fP [\(aqOPTION\(aq]... [\(aqOPERATION\(aq]... [\(aqVALUE\(aq]... .SH "OPTIONS" .sp \fB\-h, \-\-help\fP .RS 4 Print this help. .RE .sp \fB\-l, \-\-list\fP .RS 4 List devices with available brightness controls. .RE .sp \fB\-q, \-\-quiet\fP .RS 4 Suppress output. .RE .sp \fB\-p, \-\-pretend\fP .RS 4 Do not perform write operations. .RE .sp \fB\-m, \-\-machine\-readable\fP .RS 4 Produce machine\-readable output. .RE .sp \fB\-s, \-\-save\fP .RS 4 Save state in a temporary file. .RE .sp \fB\-r, \-\-restore\fP .RS 4 Restore previously\-saved state. .RE .sp \fB\-d, \-\-device\fP=\fIDEVICE\fP .RS 4 Specify device name (can be a wildcard). .RE .sp \fB\-c, \-\-class\fP=\fICLASS\fP .RS 4 Specify device class. .RE .sp \fB\-v, \-\-version\fP .RS 4 Print version and exit. .RE .SH "OPERATIONS" .sp \fBi, info\fP .RS 4 Get device info. .RE .sp \fBg, get\fP .RS 4 Get the current brightness of the device. .RE .sp \fBm, max\fP .RS 4 Get the maximum brightness of the device. .RE .sp \fBs, set\fP \fIVALUE\fP .RS 4 Set the brightness of the device. Valid values: .IP \[bu] 2 absolute value: 500 .IP \[bu] relative value: 50% .IP \[bu] absolute delta: 50- or +10 .IP \[bu] relative delta: 50%- or +10% .RE .SH "RESOURCES" .sp \fBProject development repository:\fP \c https://github.com/Hummer12007/brightnessctl .SH "COPYING" .sp Copyright \(co 2016\-2018 Mykyta Holubakha. Free use of this software is granted under the terms of the MIT/Expat License. .SH "AUTHOR(S)" .sp \fBMykyta Holubakha\fP \fBNicolas Braud-Santoni\fP (manpage)