Linux每日一题——（1）创建和删除用户

useradd命令创建用户
1.以root身份登录，创建test/test用户
[root@localhost ~]# useradd test
[root@localhost ~]# passwd test
Changing password for user test.
New UNIX password:
BAD PASSWORD: it is too short
Retype new UNIX password:
passwd: all authentication tokens updated successfully.

home下查询到test用户主目录
[root@localhost ~]# cd /home/
[root@localhost home]# ll
总计 12
drwx------ 22 oracle  oinstall 4096 01-06 00:21 oracle
drwx------  4 test    test     4096 01-09 18:51 test

userdel删除用户
1.先删除用户
[root@localhost /]# userdel test
[root@localhost /]# cd /home/
[root@localhost home]# ll
总计 12
drwx------ 22 oracle  oinstall 4096 01-06 00:21 oracle
drwx------  4     502      503 4096 01-09 18:51 test

2.再删除主目录
[root@localhost home]# rm -rf test/
[root@localhost home]# ll
总计 8
drwx------ 22 oracle  oinstall 4096 01-06 00:21 oracle

更好的方法：直接删除用户及主目录
[root@localhost home]# userdel -r test
[root@localhost home]# ll
总计 8
drwx------ 22 oracle  oinstall 4096 01-06 00:21 oracle