What is a group in Ubuntu? Groups can be thought of as levels of privilege. A person who is part of a group can view or modify files belonging to that group, depending on the permissions of that file. User belonging to a group has privilleges of that group, for example – sudo groups lets you run software as super user.
What is difference between users and groups? Users can be either people, meaning accounts tied to physical users, or accounts which exist for specific applications to use. Groups are logical expressions of organization, tying users together for a common purpose. Users within the same group can read, write, or execute files owned by the group.
How do I give permission to group in Linux? To change file and directory permissions, use the command chmod (change mode). The owner of a file can change the permissions for user ( u ), group ( g ), or others ( o ) by adding ( + ) or subtracting ( – ) the read, write, and execute permissions.
What is the difference between user and group in Linux? User: the owner of the file (person who created the file). Group: the group can contain multiple users. Therefore, all users in that group will have the same permissions. It makes things easier than assign permission for every user you want.