#! /bin/bash

if [ -n "$1" ]; then
  DIR_ROOT="$1"
else
  DIR_ROOT=$PWD
fi

end_with(){
  echo $1 | grep $2 >/dev/null 2>&1
  if [ $? -eq 0 ];then
    return 1
  fi
  return 0
}

dir_md5(){
if [ "$(ls -A $1)" ]; then
  declare -i i=0
  declare -a my_array
  for file in ` ls $1 `
  do
     if [ -d $1"/"$file ]; then
	echo $i
	my_array[$i]=$1"/"$file
	i=` expr $i + 1 `
     else
        if end_with "$file" "md5\.sh$"; then
           if end_with "$file" "md5_d\.sh$"; then
	      cd $1"/"
              md5sum $file > $file.md5
           fi
        fi
     fi
  done
  
  for my_dir in ${my_array[*]}
  do
      dir_md5 $my_dir
      cd $1"/"
  done 
fi
}

sh +x md5_d.sh $DIR_ROOT

dir_md5 $DIR_ROOT

#! /bin/bash

if [ -n "$1" ]; then
  DIR_ROOT="$1"
else
  DIR_ROOT="."
fi

dir_md5(){
  for file in $1/*
  do
     if [ -d $file ]; then
        dir_md5 $file
     else
        #左边最长匹配模式
        if [ ${file##*.} = "md5" ]; then
            rm -f $file
        fi
     fi
  done
}

dir_md5 $DIR_ROOT