shell遍历文件加下的子目录

#!/bin/bash
function getdir(){
    for element in `ls $1`
    do  
        dir_or_file=$1"/"$element
        if [ -d $dir_or_file ]
        then 
            getdir $dir_or_file
        else
                echo $dir_or_file
        fi  
    done
}

root_dir="/home/scripts/test/06_des_monitor"
getdir $root_dir