Contents
Roadmap info from roadmap website
Linux User Groups
In Linux, a User Group is a mechanism used to manage the system’s users and permissions. It represents a collection of users, designed specifically to simplify system administration. Each user in Linux is a part of one or more groups. These groups are primarily used for determining access rights to various system resources, including files, directories, devices, etc.
Understanding and appropriately managing user groups in Linux is crucial for overall system security. It allows the administrator to grant certain privileges to a specific set of users, without granting them complete superuser or root access.
One can check a user’s group affiliations using the groups command, while the /etc/group file contains a list of all groups on the system.
groups [username]
cat /etc/group
At times, it becomes necessary to add or remove users from groups, modifications to group properties or even the creation and deletion of groups altogether. These operations can typically be performed using the groupadd, groupdel, groupmod, usermod, and gpasswd commands.
Overall, user groups are an essential component of Linux User Management, helping to maintain a secure and organized system environment.