---
syntax: markdown
tags: [tldr, osx]
source: https://github.com/tldr-pages/tldr.git
---
# brightness

> Get and set the brightness level of all internal and certain external displays.
> More information: <https://github.com/nriley/brightness>.

- Show current brightness:

`brightness -l`

- Set a specific brightness:

`brightness {{0..1}}`

- Set the brightness to 50%:

`brightness {{0.5}}`