Linux下添加普通用户为信任用户

                                                                                                                                                                                                                                                                                                                       用户xy不在信任的用户内

[xy@VM-12-17-centos ~]$ whoami
xy
[xy@VM-12-17-centos ~]$ ls
me  test.txt
[xy@VM-12-17-centos ~]$ 
[xy@VM-12-17-centos ~]$ pwd
/home/xy
[xy@VM-12-17-centos ~]$ sudo ls
[sudo] password for xy: 
xy is not in the sudoers file.  This incident will be reported.

 other用户无权限

[xy@VM-12-17-centos ~]$ ls /etc/sudoers
/etc/sudoers
[xy@VM-12-17-centos ~]$ ls /etc/sudoers -al
-r--r----- 1 root root 4363 Jan  3 15:52 /etc/sudoers

修改需要联系管理员

[xy@VM-12-17-centos ~]$ su
Password: 
[root@VM-12-17-centos xy]# whoami
root
[root@VM-12-17-centos xy]# vim /etc/sudoers

      强制写入加！

                       

 已加入信任用户

[root@VM-12-17-centos xy]# ls
me  test.txt
[root@VM-12-17-centos xy]# su xy
[xy@VM-12-17-centos ~]$ whoami
xy
[xy@VM-12-17-centos ~]$ sudo ls
[sudo] password for xy: 
me  test.txt

删除用户        userdel -r juzi

[xy@VM-12-17-centos ~]$ su
Password: 
[root@VM-12-17-centos xy]# ls /home
juzi  xy
[root@VM-12-17-centos home]# userdel -r juzi
[root@VM-12-17-centos home]# ls
xy