switch-headphones.sh

#!/usr/bin/env bash

SINK_SPEAKERS="alsa_output.pci-0000_00_1b.0.analog-stereo"
SINK_HEADPHONES="alsa_output.usb-Logitech_Logitech_G930_Headset-00-Headset.analog-stereo"

pacmd stat | grep "Default sink name" | grep --quiet "$SINK_SPEAKERS"

if [ $? == 0 ]
    then
        pacmd set-default-sink "$SINK_HEADPHONES" \
        && pacmd list-sink-inputs | grep index | awk '{print $2}' | xargs -I sinkindex pacmd move-sink-input sinkindex "$SINK_HEADPHONES" \
        && pacmd play-file /usr/share/sounds/freedesktop/stereo/bell.oga "$SINK_HEADPHONES"
    else
        pacmd set-default-sink "$SINK_SPEAKERS" \
        && pacmd list-sink-inputs | grep index | awk '{print $2}' | xargs -I sinkindex pacmd move-sink-input sinkindex "$SINK_SPEAKERS" \
        && pacmd play-file /usr/share/sounds/freedesktop/stereo/bell.oga "$SINK_SPEAKERS"
fi