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#!/bin/sh
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
main()
{
# Handle opts
while getopts ":h" opt
do
case "$opt" in
h) usage && exit 0 ;;
*)
printf "Invalid option passed: %s\n" "$OPTARG" >&2
;;
esac
done
shift $(( OPTIND - 1 ))
[ $# -lt 1 ] && usage && exit 1
case "$1" in
inc)
amixer set Master ${2:-5}%+ > /dev/null
notify="Level increased to $(volume_level)%"
;;
dec)
amixer set Master ${2:-5}%- > /dev/null
notify="Level decreased to $(volume_level)%"
;;
set)
amixer set Master $2% > /dev/null
notify="Level set to $(volume_level)%"
;;
on)
amixer set Master on > /dev/null
notify="Unmuted at $(volume_level)%"
;;
off)
amixer set Master off > /dev/null
notify="Muted"
;;
toggle)
case "$(volume_state)" in
on) exec $0 off ;;
off) exec $0 on ;;
esac
;;
esac
notify-send -n 19269 -s -t 2 -i "$(volume_icon)" "Volume" "$notify"
}
volume_level()
{
amixer get Master | awk '/Left:/ { print $5 }' | head -n 1 | tr -d '[]%'
}
volume_state()
{
amixer get Master | awk '/Left:/ { print $6 }' | head -n 1 | tr -d '[]'
}
volume_icon()
{
[ "$(volume_state)" = "off" ] && printf "audio-volume-muted-panel" && return
[ $(volume_level) -lt 1 ] && printf "audio-volume-low-zero-panel" && return
[ $(volume_level) -lt 30 ] && printf "audio-volume-low-panel" && return
[ $(volume_level) -lt 70 ] && printf "audio-volume-medium-panel" && return
printf "audio-volume-high-panel"
}
usage()
{
cat <<EOF
Usage:
${0##*/} -h
${0##*/} inc [level]
${0##*/} dec [level]
${0##*/} set <level>
${0##*/} on
${0##*/} off
${0##*/} toggle
Alter the current volume level or state, and add in a notification.
Subcommands:
inc Increase the volume by level, defaults to 5.
dec Decrease the volume by level, defaults to 5.
set Set the volume to level.
on Unmute.
off Mute.
toggle Toggle between muted and unmuted state.
Options:
-h Show this help text and exit.
EOF
}
main "$@"
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