To add a user to a group, open the Terminal, then type “sudo usermod -a -G examplegroup exampleusername” into the window. Replace “examplegroup” and “exampleusername” with the group and username you want to modify.
Changing the group a user is associated to is a fairly easy task, but not everybody knows the commands, especially to add a user to a secondary group. We’ll walk through all the scenarios for you. User accounts can be assigned to one or more groups on Linux. You can configure file permissions and other privileges by group. For example, on Ubuntu, only users in the sudo group can use the sudo command to gain elevated permissions.
If you’re using a new Linux laptop, you might have some type of GUI interface to configure these settings (depending on the distribution that you’re running, at least) but realistically it’s almost always easier to just drop down to the terminal and type out a few commands, so that’s what we’re showing you today.
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