Toggle volume mute/unmute under Ubuntu 12.10. #!/bin/bash CURRENT_STATE=`pacmd dump | grep set-sink-mute | egrep -o 'no|yes'` if [[ $CURRENT_STATE == 'no' ]]; then pactl set-sink-mute @DEFAULT_SINK@ 1 else pactl set-sink-mute @DEFAULT_SINK@ 0 fi