1.1 Rwx 修改权限或所有者
先创建目录
[root@oldboyedu50-lnb ~]# mkdir -p /oldboy [root@oldboyedu50-lnb ~]# echo 'hostname' >/oldboy/test.sh [root@oldboyedu50-lnb ~]# cat /oldboy/test.sh hostname [oldboy@oldboyedu50-lnb /oldboy]$ ll test.sh -rw-r--r--. 1 root root 9 Aug 6 12:32 test.sh
1.1.1 oldboy用户下面测试 [oldboy@oldboyedu50-lnb /oldboy]$ ll test.sh -r--r--r--. 1 oldboy oldboy 9 Aug 6 12:32 test.sh [oldboy@oldboyedu50-lnb /oldboy]$ cat test.sh hostname [oldboy@oldboyedu50-lnb /oldboy]$ echo 'pwd'>>test.sh -bash: test.sh: Permission denied [oldboy@oldboyedu50-lnb /oldboy]$ /oldboy/test.sh -bash: /oldboy/test.sh: Permission denied
1.1.2 root用户下面修改权限 测试w权限
oldboy用户只有w 权限
[root@oldboyedu50-lnb /oldboy]# chmod u=w test.sh [root@oldboyedu50-lnb /oldboy]# ll test.sh --w-r--r--. 1 oldboy oldboy 9 Aug 6 12:32 test.sh
1.2 oldboy用户下面测试
oldboy@oldboyedu50-lnb /oldboy]$ ll test.sh --w-r--r--. 1 oldboy oldboy 9 Aug 6 12:32 test.sh [oldboy@oldboyedu50-lnb /oldboy]$ cat test.sh cat: test.sh: Permission denied [oldboy@oldboyedu50-lnb /oldboy]$ echo 'pwd' >>test.sh [oldboy@oldboyedu50-lnb /oldboy]$ cat test.sh cat: test.sh: Permission denied [oldboy@oldboyedu50-lnb /oldboy]$ [oldboy@oldboyedu50-lnb /oldboy]$ /oldboy/test.sh -bash: /oldboy/test.sh: Permission denied
root用户下面修改权限 测试x权限
2.1 oldboy用户 只有x 权限
[root@oldboyedu50 oldboy]# chmod u=x test.sh [root@oldboyedu50 oldboy]# ll test.sh ---xr--r--. 1 root root 4 5月 24 08:45 test.sh
2.2 oldboy用户下面测试
[oldboy@oldboyedu50-lnb /oldboy]$ ll test.sh ---xr--r--. 1 oldboy oldboy 13 Aug 6 12:56 test.sh [oldboy@oldboyedu50-lnb /oldboy]$ cat test.sh cat: test.sh: Permission denied [oldboy@oldboyedu50-lnb /oldboy]$ echo 'pwd' >>test.sh -bash: test.sh: Permission denied [oldboy@oldboyedu50-lnb /oldboy]$ /oldboy/test.sh bash: /oldboy/test.sh: Permission denied
