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Showing posts with label command line. Show all posts
Showing posts with label command line. Show all posts

How to change the brightness (backlight) on Linux by terminal?

xbacklight -set <value>

Example

xbacklight -set 20.0

 Arcam Sapientia

See the man for more options
 man xbacklight

How to change the system volume by terminal on Linux?

amixer set Master <volume>

Example

amixer set Master 20

Arcam Sapientia

See the manual to another helpfull parameters
$man amixer