1，创建用户并设置密码

# adduser likilone

# passwd likilone

Changing password for user likilone.

New password: 

Retype new password: 

passwd: all authentication tokens updated successfully.

2，授予sudo权限

# vim /etc/sudoers

在root    ALL=(ALL)       ALL 下面添加代码，添加后的代码如下

root    ALL=(ALL)       ALL

likilone        ALL=(ALL)       ALL

3，验证sudo

# su likilone

$ sudo ls

We trust you have received the usual lecture from the local System

Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.

    #2) Think before you type.

    #3) With great power comes great responsibility.

[sudo] password for likilone: 

看到如上代码即表示成功设定了

4，其他说明：sudoers只有只读权限，在保存的时候可 输入wq! 进行强制保存

或者在保存之前先修改权限，然后再改回来

修改只读

chmod -v u+w /etc/sudoers

恢复权限

chmod -v u-w /etc/sudoers