How to add user to Linux group

In this article, we will see how to add user to Linux group.

Linux Group is collection of users. The main purpose of the Linux groups is to define a set of privileges like read, write, or execute permission for a given resource that can be shared among the users within the group.

How to add user to Linux group

Privileges required to add user to group are: A user account with sudo or root privileges.

Syntax to add user to group:

sudo adduser username new_group

1. Create a group called ‘sales’.

sudo addgroup sales

How to add user to Linux group

2. Add user ‘mike’ to group sales.

sudo adduser mike sales

3. Add user ‘david’ to multiple groups.

Syntax is:

usermod -a -G group1,group2,group3 exampleusername

sudo usermod -a -G sales,admin david

4. Verify the list of groups user added to.

groups david

5. Add multiple users to group.

sudo gpasswd -M r2schools,david,mike administrators

6. To get list of users added to a Group in Linux.

grep '^administrators:' /etc/group