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brightnessctl:tldr:d8899

brightnessctl: Set the brightness of the display backlight to a specified percentage within range.
$ brightnessctl set ${50%}
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The command "brightnessctl set ${50%}" is used to adjust the display brightness of a device. Here's a breakdown of how each component of the command works:

  • "brightnessctl": This is the name of the command-line tool that is being used to control the brightness. It allows you to interact with the backlight control interface of the display device.

  • "set": This is a sub-command of "brightnessctl" that is used to set the brightness level to a specific value.

  • "${50%}": This is a variable that represents the brightness value. In this case, it is set to 50%. The "%" symbol represents a relative value, where 100% corresponds to the maximum brightness level supported by the device. So, with "${50%}", the brightness will be set to 50% of the maximum brightness.

Overall, the command is used to set the brightness of a device to a specified level, which in this case is 50% of the maximum brightness.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
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