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Enter a command. For example: wtf, timedatectl, prlimit, gnome extensions.

amixer

Mixer for ALSA soundcard driver. More information: https://manned.org/amixer.

• Turn up the master volume by 10%:
   
  amixer -D pulse sset Master {{10%+}}
   
• Turn down the master volume by 10%:
   
  amixer -D pulse sset Master {{10%-}}