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#!/bin/bash
# Usage:
# The first argument is the percentage by which you should
# change the volume
# The second argument should be `+` or `-`
# to choose wether to increment or decrement audio.
# If no second argument is given, the audio will be SET
# to a set percentage fixed by the first argument.
case "$1" in
mute) amixer set Master toggle ;;
*) pcnt="$1"
sign="$2"
amixer set Master $pcnt%$sign ;;
esac
mute=""
vol=$(awk '/%/ {gsub(/[\[\]]/,""); print $4}' <(amixer sget Master))
amixer sget Master | grep off && mute="(muted)"
notify-send.sh -t 1000 --replace-file /tmp/vol-notif -a Volume "$vol $mute"
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