Mute Everything (ALL)

# MUTE EVERYTHING ON UBUNTU
# REFER: https://askubuntu.com/questions/12100/command-to-mute-and-unmute-a-microphone

pacmd list-sources | \
    grep -oP 'index: \d?\d' | \
    awk '{ print $2 }' | \
    xargs -I{} pactl set-source-mute {} toggle