How do I add users to a group?

To add users to a group in Linux, you can use the usermod command. Here’s how to do it:

1. Open a terminal.

2. Run the following command to add a user to a group. Replace username with the actual username and groupname with the name of the group:

   sudo usermod -aG groupname username

   For example, to add the user john to the sales group, you would run:

   sudo usermod -aG sales john

3. Verify the user has been added to the group by running:

   groups username

   This will display the groups that the user belongs to.

Important Notes:

• The -a option appends the user to the group without removing them from other groups.
• You need administrative privileges to add users to a group.
• The user must already exist on the system.