Linux系统shell脚本for循环实战之目录权限

• 一、脚本要求
• 二、编写脚本
• 三、执行脚本

1.要求输入任意目录：
若目录不在，输出该目录不存在
若目录存在，输出该目录下的文件或目录，且列出其权限

[root@192 scripts]# cat ./found_file.sh 
#!/bin/bash
########################################
#Author:jeven
#time:Sun 15 May 2022 09:26:22 PM CST
#filename:found_file.sh
#Script description:
########################################
read -p "please input a dir :" dir
if [ "$dir" == "" -o ! -d "$dir" ];then
	echo "the $dir is not exist!"
	exit 1
	fi
FILE=$( ls  "$dir")
for filename in $FILE
do
	perm=""
	test -r "$dir/$filename" && perm="$perm readable"
	test -w "$dir/$filename" && perm="$perm writable"
	test -x "$dir/$filename" && perm="$perm executable"
	echo "the file $dir /$filename 's permission is $perm "
done

[root@192 scripts]# ./found_file.sh 
please input a dir :/data/mysql
the file /data/mysql /file0 's permission is  readable writable 
the file /data/mysql /file1 's permission is  readable writable 
the file /data/mysql /file10 's permission is  readable writable 
the file /data/mysql /file2 's permission is  readable writable 
the file /data/mysql /file3 's permission is  readable writable 
the file /data/mysql /file4 's permission is  readable writable 
the file /data/mysql /file5 's permission is  readable writable 
the file /data/mysql /file6 's permission is  readable writable 
the file /data/mysql /file7 's permission is  readable writable 
the file /data/mysql /file8 's permission is  readable writable 
the file /data/mysql /file9 's permission is  readable writable