rchsa用户创建
1、进入vi /etc/passwd

按i键后进入插入模式,在最后一行创建kuangda用户
(2)按Esc退出插入模式后按shift +:后输入wq保存并退出

2、进入vi /etc/group
[root@localhost ~]# vi /etc/group

3、cd 切换到/home家目录下,创建kuangda并查看
[root@localhost ~]# cd /home
[root@localhost home]# ll
total 0
drwx------. 2 goudan goudan 62 May 19 07:00 goudan
[root@localhost home]# mkdir kuangda
[root@localhost home]# ll
total 0
drwx------. 2 goudan goudan 62 May 19 07:00 goudan
drwxr-xr-x. 2 root root 6 May 19 07:21 kuangda
4、修改权限并查看
[root@localhost home]# chmod 700 kuangda/
[root@localhost home]# ll
total 0
drwx------. 2 goudan goudan 62 May 19 07:00 goudan
drwx------. 2 root root 6 May 19 07:21 kuangda
5、将root改为kuangda
[root@localhost home]# ll
total 0
drwx------. 2 goudan goudan 62 May 19 07:00 goudan
drwx------. 2 root root 6 May 19 07:21 kuangda
[root@localhost home]# chown kuangda:kuangda kuangda/
[root@localhost home]# ll
total 0
drwx------. 2 goudan goudan 62 May 19 07:00 goudan
drwx------. 2 kuangda kuangda 6 May 19 07:21 kuangda
6、切换到mail下
[root@localhost home]# cd /var/spool/mail/
[root@localhost mail]# ll
total 0
-rw-rw----. 1 goudan mail 0 May 19 07:00 goudan
7、在mail下创建kuangda
[root@localhost mail]# touch kuangda
[root@localhost mail]# ll
total 0
-rw-rw----. 1 goudan mail 0 May 19 07:00 goudan
-rw-r–r--. 1 root root 0 May 19 07:24 kuangda
!!修改kuangda权限
root@localhost mail]# chmod 660 kuangda
[root@localhost mail]# ll
total 0
-rw-rw----. 1 goudan mail 0 May 19 07:00 goudan
-rw-rw----. 1 root root 0 May 19 07:26 kuangda
8、将root改为kuangda mail
[root@localhost mail]# chown kuangda:mail kuangda
[root@localhost mail]# ll
total 0
-rw-rw----. 1 goudan mail 0 May 19 07:00 goudan
-rw-rw----. 1 kuangda mail 0 May 19 07:26 kuangda
9、切换到kuangda 并id
[root@localhost mail]# su - kuangda
[kuangda@localhost ~]$ id kuangda
uid=1001(kuangda) gid=1001(kuangda) groups=1001(kuangda)
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