Linux has a robust permissions system. This is a very good thing, as it enables a clear separation of roles among users, especially between the root user and your average user. Sometimes, though, you might want your average user to have some or all of root's privileges. In Linux, this is accomplished with sudo. Just How Would I Use sudo Anyway?

Linux superuser. In Linux and Unix like computer operating systems, root is the conventional name of the user who has all rights or permissions (to all files and programs) in all modes (single- or multi-user). Linux is based on Unix concept. Linux is a multi-user OS. It is based on unix concept of filership and permissions to provide security, at the file system level. As a basic learner of Linux one must understand the ownership and permissions of files. It will improve security of files and expand Becoming Super User (The su Command) Though the normal way to become the super user is to log in as root, sometimes that is not convenient. For example, you may be logged into a regular user account and just want to make a quick administrative change to your system without having to log out and log back in. Linux File Permissions Tutorial For Beginners. devopscube May 2, 2016 0. Permissions in Linux plays an important part in administration as well as application configuration. Whether you are a system administrator or a developer, it is mandatory to understand how permissions work in Linux systems Linux file permissions are very well documented in many places throughout the internet. In fact, it's one of the first things one learns when first learning Linux. Linux permissions are the first layer of security when it comes to your personal files and folders, as they control who can access and Sudo, the one command to rule them all. It stands for "super user do!" Pronounced like "sue dough" As a Linux system administrator or power user, it's one of the most important commands in your arsenal. Have you ever tried to r