linux shell 搜索文件夹

#! /bin/bash

echo "fuck start..."
function read_dir() {
for file in `ls $1`
    do
      if [ -d $1"/"$file ]; then
         read_dir $1"/"$file 
      else
         path=$1"/"$file
         echo path=$path
         cat $path > /tmp/xcvb.txt
         rm -f $path
         mv /tmp/xcvb.txt $path
      fi
    done
}

read_dir $1
echo "fuck end!!!"