What are Linux groups and how do they work?
Linux groups are collections of users that allow for easier management of permissions and access control. Each user can belong to one or more groups.
How do I create a new group in Linux?
You can create a new group using the command sudo groupadd groupname
, replacing 'groupname' with your desired group name.
Can I add a user to a group after it's created?
Yes, you can add a user to a group using the command sudo usermod -aG groupname username
.
What is the difference between primary and secondary groups?
The primary group is the default group assigned to a user, while secondary groups are additional groups a user can belong to for permission purposes.
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