function bytestohuman() 
	{
        if [ "${1:0:2}" == "-h" ]||[ "${1:0:2}" == "-?" ]
                then
                echo -e "\033[0;32mReinis ${FUNCNAME[0]} V1.0\033[0m"
                echo "Wandelt Bytes in leserliche Groesse um"
                return
        fi
	b=${1:-0}; d=''; s=0; S=(Bytes {K,M,G,T,P,E,Z,Y,B}iB)
	while ((b > 1024)) 
		do
		d="$(printf ".%02d" $((b % 1024 * 100 / 1024)))"
		b=$((b / 1024))
		let s++
	done
	echo "$b$d ${S[$s]}"
	}
function dub()
	{
	if [ "${1:0:2}" == "-h" ]||[ "${1:0:2}" == "-?" ]
                then
                echo -e "\033[0;32mReinis ${FUNCNAME[0]} V1.0\033[0m"
		echo -e "\033[0;32m${FUNCNAME[0]} listet SIZE und sortiert\033[0m"
		echo "${FUNCNAME[0]} -d listet keine Unterverzeichnisse"
		echo "-dNR:"
		echo "NR = Verzeichnisstiefe"
		echo "EXAMPLE:"
		echo "${FUNCNAME[0]} -d3 /var/log"
		echo "Listet Size sortiert in Tiefe von 3 Verzeichnissen auf"
		return	
	fi
	if [ "${1:0:2}" == "-d" ]
		then
		if [ "${1:2:2}" == "" ]
			then
			deep=1
		else
			deep=$(echo "${1:2:2}")
		fi
		CMD="du -b --max-depth=$deep $2"
	else
		CMD="du -b $1"
	fi
	$CMD|sort -n|while read SIZELINE
		do
		SIZE=$(echo $SIZELINE|cut -f1 -d" ")
		LINE=$(echo $SIZELINE|cut -f2- -d" ")
		echo "$(bytestohuman $SIZE) $LINE"|sed 's/\.\// /g'
	done
	}