删除目录及其所有子目录下的空文件和过期文件

#!/bin/sh
dir="/mnt/lelink/movies/data"
date=`date '-d 1days' +%Y%m%d`
cd $dir || exit
function isdir(){
    local lsdir=$1
    for list in `ls $lsdir`
    do  
        if [ -d $lsdir/$list ];then
            count=`ls $lsdir/$list|wc -l`
            if [ $count -eq 0 ];then
                rmdir $lsdir/$list
            else    
                isdir $lsdir/$list
            fi
        elif [ -f $lsdir/$list ];then
            ctime=`ls --full-time $lsdir/$list|awk '{print $6}' | awk -F'-' '{print $1$2$3}'`
            if [ $ctime -lt $date ];then
                rm $lsdir/$list
            fi
        fi
    done 
}
isdir $dir