Linux-Shell

1.獲取該目錄下，全部文件之和

> find ./ -type f  | wc -l

> sh

folder=$(pwd)
echo $folder
declare total=0
for d in `ls $folder`
do
  echo $d
  if [ -d $d ]:
  then
    number=$(ls ./$d/ | wc -l)
    total=$((total+number))
  fi
done;
echo $total

2.給文件重命名