gammastep

Adjust the screen's color temperature according to the time of day. tldr-pages

On several platforms

Several platforms

Turn on Gammastep with temperature set to 5700k during the day and 3600k at night

gammastep -t 5700:3600Identify

Turn on Gammastep with a manually specified custom location

gammastep -l latitude:longitudeIdentify

Turn on Gammastep with screen brightness set to 70% during the day and 40% at night

gammastep -b 0.7:0.4Identify

Turn on Gammastep with custom gamma levels (between 0 and 1)

gammastep -g red:green:blueIdentify

Turn on Gammastep with a cOnstant unchanging color temperature

gammastep -O temperatureIdentify

Reset temperature adjustments applied by Gammastep

gammastep -xIdentify