#!/bin/bash while true do value=`rec -q -n stats trim 0 2 2>&1 | grep 'Max level' | sed 's/^Max level[ ]*//g;s/ /\n/g'| head -n1 | sed 's/^\(.*\)$/\1*1000/' | bc | cut -f1 -d'.'` echo $value if [ "$value" -gt 50 ] then espeak -v de 'Es ist zu laut!' 2>/dev/null echo 'ZUUUUUUUUUUUUU LAUUUUUUUUUUUUUUUT!' fi done