Chapter 8. Linux Accounts
Linux is a multi-user operating system—a system that allows many users to work on the same computer, at the same time. For this to work, each user's work must be kept separate. One user can't be allowed to interfere with another's work, either accidentally or with evil intentions. A system that allowed your rival to delete the report you spent weeks writing would not be very popular. Linux accounts keep users' work private and protected.
A Linux system basically consists of files and processes. All information is organized into files and each file is owned by an account, protected from other accounts. All work done on your computer, including the invisible work that keeps your computer running, is done in a process—a ...
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