mpd-control.sh

#!/bin/bash
#=======================================================================================================================
# Description
#   Script to control MPD (music player daemon) using MPC.
# Parameters
#   1 - Command, one of the following:
#         prev
#         next
#         toggle
#         random
#         update
# Version
#   1.00
# History
#   11-03-2010  yktoo  Initial version.
#=======================================================================================================================

# Setup vars
cmd=$1
notify_title="MPD Control"

#-----------------------------------------------------------------------------------------------------------------------
# Functions
#-----------------------------------------------------------------------------------------------------------------------

#-----------------------------------------------------------------------------------------------------------------------
# Displays usage info and exits
# Parameters:
#   none
usage() {
  echo "Usage: $0 [prev|next|toggle|random|update]"
  exit 1
}

#-----------------------------------------------------------------------------------------------------------------------
# Main routine
#-----------------------------------------------------------------------------------------------------------------------

unset notify_text notify_icon

case "$cmd" in
prev)
  mpc --no-status prev
  notify_text="$(mpc status | sed '1 ! d')"
  notify_icon='media-skip-backward'
  ;;
next)
  mpc --no-status next
  notify_text="$(mpc status | sed '1 ! d')"
  notify_icon='media-skip-forward'
  ;;
toggle)
  mpc --no-status toggle
  if mpc status | grep '\[playing\]' >/dev/null; then
    notify_text="$(mpc status | sed '1 ! d')"
    notify_icon='media-playback-start'
  else
    notify_text='Paused'
    notify_icon='media-playback-pause'
  fi
  ;;
random)
  mpc --no-status random
  notify_text="$(mpc status | grep -o -r 'random: (on|off)')"
  notify_icon='media-playlist-shuffle'
  ;;
update)
  mpc --no-status update
  notify_text='Media library has been reloaded'
  notify_icon='reload'
  ;;
*)
  usage
esac

if [[ ! -z "$notify_text" ]]; then
  notify-send -i "$notify_icon" "$notify_title" "$notify_text"
fi