Linux is multi-user system. … The first is root user. The root is superuser (you can compare this account with Administrator account under MS-Windows 2000/2003/XP server). The root has all rights to all files, system services, and softwares. The second user is a normal (general-purpose) user account that you name.

What is a Linux system account?

A system account is a user account that is created by an operating system during installation and that is used for operating system defined purposes. System accounts often have predefiend user ids. Examples of system accounts include the root account in Linux.

What is Linux used for?

Linux has long been the basis of commercial networking devices, but now it’s a mainstay of enterprise infrastructure. Linux is a tried-and-true, open-source operating system released in 1991 for computers, but its use has expanded to underpin systems for cars, phones, web servers and, more recently, networking gear.