Enter a command. For example: mkfs.vfat, lsattr, ports, emerge.


Utility for reading and controlling device brightness for GNU/Linux operating systems. More information:
  • List devices with changeable brightness:
    brightnessctl --list
  • Print the current brightness of the display backlight:
    brightnessctl get
  • Set the brightness of the display backlight to a specified percentage within range:
    brightnessctl set {{50%}}
  • Increase brightness by a specified increment:
    brightnessctl set {{+10%}}
  • Decrease brightness by a specified decrement:
    brightnessctl set {{-10%}}

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