shell 遍历目录大小的经典写法

#!/usr/bin/env bash

export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin


read -p "请输入目录名称（例如：/root）" result

cd ${result}
for k in $(ls ${result})
do 
        [ -d $k ] && du -sh $k
done