Linux CentOS 8 添加用户到组中 Add User to Group

lizzy是我们新建的用户

添加lizzy到work中：

Now to add the user lizzy to the work group with the following command:

$ sudo usermod -aG work lizzy

 

 

查看所有用户组：

cat etc/group

grep出hadoop用户组：

cat etc/group |grep hadoop

hadoop:x:1000:hadoop

 

添加用户：

add another user ash.

$ sudo useradd -m ash

Also set password for ash.

$ sudo passwd ash