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#!/bin/bash
# You can call this script like this:
# volumecontrol up
# volumecontrol down
# volumecontrol mute
function get_volume {
amixer get Master | grep '%' | head -n 1 | cut -d '[' -f 2 | cut -d '%' -f 1
}
function is_mute {
amixer get Master | grep '%' | grep -oE '[^ ]+$' | grep off > /dev/null
}
function send_notification {
volume=$(get_volume)
# Make the bar with the special character ─ (it's not dash -)
# https://en.wikipedia.org/wiki/Box-drawing_character
if [ "$volume" = "0" ]; then
icon_name="/usr/share/icons/Adwaita/16x16/legacy/audio-volume-muted.png"
notify-send -i "$icon_name" -r 5556 -u normal "$volume"
else
if [ "$volume" -lt "10" ]; then
icon_name="/usr/share/icons/Adwaita/16x16/legacy/audio-volume-low.png"
notify-send -i "$icon_name" -r 5556 -u normal "$volume"
else
if [ "$volume" -lt "30" ]; then
icon_name="/usr/share/icons/Adwaita/16x16/legacy/audio-volume-low.png"
else
if [ "$volume" -lt "70" ]; then
icon_name="/usr/share/icons/Adwaita/16x16/legacy/audio-volume-medium.png"
else
icon_name="/usr/share/icons/Adwaita/16x16/legacy/audio-volume-high.png"
fi
fi
fi
fi
bar=$(seq -s "─" $(($volume/5)) | sed 's/[0-9]//g')
# Send the notification
notify-send -i "$icon_name" -r 5556 -u normal "$bar $volume"
}
case $1 in
up)
# Set the volume on (if it was muted)
amixer set Master on > /dev/null
# Up the volume (+ 2%)
amixer sset Master 2%+ > /dev/null
send_notification
canberra-gtk-play -i audio-volume-change
;;
down)
amixer set Master on > /dev/null
amixer sset Master 2%- > /dev/null
send_notification
canberra-gtk-play -i audio-volume-change
;;
mute)
# Toggle mute
amixer set Master 1+ toggle > /dev/null
if is_mute ; then
notify-send -i "/usr/share/icons/Adwaita/16x16/legacy/audio-volume-muted.png" -r 5556 -u normal "$bar Audio Muted"
else
send_notification
canberra-gtk-play -i audio-volume-change
fi
;;
*)
volume="$(get_volume)"
if [[ $volume == "100" ]]; then
icon=""
elif [[ $volume -ge "89" && $volume -le "100" ]]; then
icon=""
elif [[ $volume -ge "79" && $volume -le "90" ]]; then
icon=""
elif [[ $volume -ge "69" && $volume -le "80" ]]; then
icon=""
elif [[ $volume -ge "59" && $volume -le "70" ]]; then
icon=""
elif [[ $volume -ge "49" && $volume -le "60" ]]; then
icon=""
elif [[ $volume -ge "39" && $volume -le "50" ]]; then
icon=""
elif [[ $volume -ge "29" && $volume -le "40" ]]; then
icon=""
elif [[ $volume -ge "19" && $volume -le "30" ]]; then
icon=""
elif [[ $volume -ge "9" && $volume -le "20" ]]; then
icon=""
elif [[ $volume -gt "0" && $volume -le "10" ]]; then
icon=""
elif [[ $volume -eq "0" ]]; then
icon=""
volume="M "
fi
if is_mute; then
icon=""
volume="M "
fi
printf "%s" "$icon $volume%"
;;
esac
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