一、查看文件或目录的权限：ls -al 文件名/目录名
1 keshengtao@LAPTOP-F9AFU4OK:~$ ls -al 2 total 16 3 drwxr-xr-x 1 keshengtao keshengtao 512 Sep 24 11:03 . 4 drwxr-xr-x 1 root root 512 Aug 6 22:04 .. 5 -rw------- 1 keshengtao keshengtao 806 Sep 24 11:06 .bash_history 6 -rw-r--r-- 1 keshengtao keshengtao 220 Aug 6 22:04 .bash_logout 7 -rw-r--r-- 1 keshengtao keshengtao 3771 Aug 6 22:04 .bashrc 8 -rw-r--r-- 1 keshengtao keshengtao 807 Aug 6 22:04 .profile 9 -rw-r--r-- 1 keshengtao keshengtao 0 Aug 6 22:05 .sudo_as_admin_successful 10 -rw------- 1 keshengtao keshengtao 1389 Sep 23 15:12 .viminfo 11 -rw-rw-rw- 1 keshengtao keshengtao 181 Sep 23 15:12 kkk.py 12 drwxrwxrwx 1 keshengtao keshengtao 512 Sep 24 11:03 test 13 keshengtao@LAPTOP-F9AFU4OK:~$ ls 14 kkk.py test 15 keshengtao@LAPTOP-F9AFU4OK:~$ ls -al kkk.py 16 -rw-rw-rw- 1 keshengtao keshengtao 181 Sep 23 15:12 kkk.py 17 keshengtao@LAPTOP-F9AFU4OK:~$ lsattr kkk.py 18 lsattr: Inappropriate ioctl for device While reading flags on kkk.py