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tldr/pages.zh/common/ybacklight.md

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# ybacklight
> 管理屏幕背光亮度。另见 `xbacklight`。
> 更多信息:<https://github.com/pixelcmtd/ybacklight>。
- 打印当前亮度和最大亮度,以斜杠分隔并缩短:
`ybacklight Sc/Sm`
- 指定亮度:
`ybacklight s{{420}}`
- 增加亮度步长为42默认值为4200
`ybacklight Si42`
- 减少亮度300
`ybacklight d300`