#!/bin/bash

# set audio master volume  
for ctl in `amixer controls | grep -i master | grep -i volume | cut -d ',' -f1`
do
   amixer cset $ctl $1%
done
for c in $(amixer scontrols | sed "s/Simple mixer control '\(.*\)',[0-9]/\1/"); do
    amixer set "$c" unmute
done
