Adding group members
Once you have groups in place, you can add existing users as well as new users to that group. All access rights and permissions assigned to the group will be automatically available to all the members of the group.
Getting ready
You will need super user or root privileges to add a group member to the Ubuntu server.
How to do it…
Follow these steps to add group members:
Here, you can use
adduser
command with two non-option arguments:$ sudo adduser john guest
Enter your password to complete
addgroup
with root privileges.
How it works…
As mentioned previously, you can use the adduser
command to add an existing user to an existing group. Here, we have passed two non-option arguments:
john
: This is the name of the user to be added to the groupguest
: This is the name of the group
There's more…
Alternatively, you can use the command usermod
to modify the group assigned to the user:
$ sudo usermod -g <group> <username>
To add a user to multiple groups, use the following command:
$ sudo usermod -a -G <group1>,<group2>,<group3> <username>
This will add <username>
to <group1>
, <group2>
, and <group3>
. Without flag –a
, any previously assigned groups will be replaced with new groups.