shell脚本

#遍历目录函数 list_alldir(){     for road in `ls -a $1`     do         if [ x"$road" != x"." -a x"$road" != x".." ];then             if [ -d "$1/$road" ];then                 echo "$1/$road"                 list_alldir "$1/$road"     do         if [ x"$road" != x"." -a x"$road" != x".." ];then             if [ -d "$1/$road" ];then                 echo "$1/$road"                 list_alldir "$1/$road"             fi         fi     done }

echo "输入文件A的根目录：" read path_A list_alldir $path_A >Adir.txt

echo "输入文件B的根目录：" read path_B list_alldir $path_B >Bdir.txt

for fileA in $(find $path