在 ubuntu 服务器上添加一个用户，并赋予权限。
文章目录
新建用户权限管理新建用户
Add a new user (testis the user name). We often use the second command. Use-rto create a system account,-mto create the user’s home directory,-sto specify the login shell of the new account. You can use check file/etc/passwdto verify.
useradd testsudo useradd -r -m -s /bin/bash test
Set password for the user
passwd test
Delete this user
userdel test
权限管理
To usesudo -i. First, use commandsudo chmod +w /etc/sudoersto change the property of the file. Then addyour_account_nameALL=(ALL:ALL) ALL, thensudo chmod -w /etc/sudoersreover. see
Ubuntu 18.04下创建新用户/目录、修改用户权限及删除用户的方法 - 云外博客 | 步入云端探索未知奥秘
If you want to add your new account to the sudo (Super User do) group.
sudo usermod -a -G sudo liyp
But this is unnecessary, so use the command to remove it.
gpasswd -d username groupname
Add user into sudo
Remove user out of group
[root@localhost ~]#分别代来表：
1、用户名：root
2、主机名：localhost
3、当前路径：~当前用户的home目录
4、权限源标志位：# or $
Another link, I find that it contains all the contents above.
Ubuntu 18.04下创建新用户/目录、修改用户权限及删除用户的方法 - 云外博客
