# acpi-backlight [](https://github.com/psf/black) [](https://github.com/fphammerle/acpi-backlight/actions) [](https://coveralls.io/github/fphammerle/acpi-backlight?branch=master) ## setup ```sh pip3 install --user --upgrade acpi-backlight ``` ## usage ```sh acpi-backlight-eval 1 # max brightness acpi-backlight-eval 0.5 # 50% brightness acpi-backlight-eval 1/4 # 25% brightness acpi-backlight-eval 'b + 0.1' acpi-backlight-eval 'b - 1/20' acpi-backlight-eval 'b * 1.1' ```