 #!/bin/bash
 # changeVolume
 
 # Arbitrary but unique message id
 msgId="991049"
  
 # Change the volume using alsa(might differ if you use pulseaudio)
 amixer -c 0 set Master "$@" > /dev/null
 
 # Query amixer for the current volume and whether or not the speaker is muted
 volume="$(amixer -c 0 get Master | tail -1 | awk '{print $4}' | sed 's/[^0-9]*//g')"
 mute="$(amixer -c 0 get Master | tail -1 | awk '{print $6}' | sed 's/[^a-z]*//g')"
 if [[ $volume == 0 || "$mute" == "off" ]]; then
     # Show the sound muted notification
     dunstify -a "changeVolume" -u low -i audio-volume-muted -r "$msgId" "Volume muted" 
 else
     # Show the volume notification
     dunstify -a "changeVolume" -u low -i audio-volume-high -r "$msgId" \
     "Volume: ${volume}%" "$(getProgressString 10 "<b> </b>" " " $volume)"
 fi
 
 # Play the volume changed sound
 canberra-gtk-play -i audio-volume-change -d "changeVolume"
