TLDR
Enter a command. For example: lsusb, qjoypad, ipset, dpkg deb.

brightnessctl

 
Utility for reading and controlling device brightness for GNU/Linux operating systems. More information: https://github.com/Hummer12007/brightnessctl.
 
  • 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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