我正在整理一个简单的文件处理脚本，除了最后，它一切正常，我想说do you want to perform another action，如果答案是，yes那么我希望脚本重新启动。我知道我需要某种循环吗？这是我所拥有的：
#/bin/bash
echo "Select an option from copy , remove , rename , linking"
#read in user input into the action variable
read action
# if action is copy then continue proceed with the following
if [ $action = "copy" ]
then
echo "Please enter the filename you wish to copy"
read filename
# check if filename exists, if it doesn't then exit program
if [ ! -e $filename ] …如何计算给定目录中当前用户具有读权限和写权限的文件数？
我从：
echo "whats the directory you want to check ?"
read dir
不确定我应该使用find命令吗？