Linux command line set audio volume with pactl and amixer

amixer commands to set audio volume:

amixer is a command-line mixer for ALSA soundcard driver

Shows a complete list of simple mixer controls

amixer scontrols

Increase volume by 5%

amixer -D pulse sset Master 5%+

amixer set 'Master' 5%+

Decrease volume by 5%

amixer -D pulse sset Master 5%-

amixer set 'Master' 5%-

Set volume to 50%

amixer -D pulse sset Master 50%
amixer set 'Master' 50%

ALSA, amixer visual audio volume command:

alsamixer

pactl command is used to control a running PulseAudio sound server

Increase volume by 5%

pactl -- set-sink-volume 0 +5%

Decrease volume by 5%

pactl -- set-sink-volume 0 -5%

Set volume to 100%

pactl -- set-sink-volume 0 100%

Simple and easy