The root access in Ubuntu gives you full access to edit configuration files and other administrative tasks. Here's how to log in as root.

Learn how to use sudo, user groups, login limits, audit tools, and backup tools to manage root access on a Linux system and secure and optimize it.

The normal installation of most distros enables the first user created to have sudo rights to everything, without ever having to log in as root or spread the root password.

Also: The best Linux distros for beginners With sudo in place, users no longer had to change to the root user or log in to that account to run administrative commands, such as installing software.