{{tag>adjust screen brightness shell howto brightnessctl}}
====== Adjust Screen Brightness ======
  * https://linuxhint.com/display_brightness_commandline/

How to adjust screen brightness via shell:
<sxh bash; gutter: false>
brightnessctl -l # use this to find out the device identifier
brightnessctl -d “intel_backlight” set 100%
</sxh>

<sxh bash; gutter: false>
vim ~/.bashrc
</sxh>

<sxh bash; title: ~/.bashrc>
function screenbrightness() {
    
    BRIGHTNESSLVL="${1}%"
    brightnessctl -d "intel_backlight" set "${BRIGHTNESSLVL}"

} 
</sxh>

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~~DISCUSSION~~