This article provides a comprehensive guide on user management in Red Hat Linux, covering essential commands for creating, modifying, and deleting users, managing groups, setting privileges with sudo, and real-world scenarios such as managing a development team or a university lab environment. It emphasizes best practices like enforcing strong password policies, automating routine tasks, auditing user accounts, backing up system files, and educating users on secure practices. By mastering these tools and techniques, system admins can enhance security, operational efficiency, and overall system performance in Red Hat Linux environments.