简易开/关静音脚本（alsa版）

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#! /bin/bash
# toggle the audio output and send notification
# by linusboyle

amixer -q set Master toggle

stat=$(amixer get Master |egrep -o '\[(on|off)\]'|head -1)

if test $stat = "[on]" ; then
    notify-send -i audio-ready "Audio Now On"
else
    notify-send -i audio-off "Audio Now Off"
fi