In Linux or Unix-based operating system, there are two types of users: a superuser (root) and a normal or regular user. The root user has full control of the operating system and it has privileges to run administrative commands like installing, removing, and updating software packages, changing permissions, and configuring different services. The non-root users have limited interactions with an operating system environment and they can perform only user-specific tasks.
The sudo command, short for “super-user do,” is a Linux utility that allows a normal user to run any commands with unlimited privileges. In this case, you will need to add a normal user to the sudo group in order to execute administrative commands.