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Fundamentals of Linux Linux is a Unix-like operating system assembled under the model of free and open source software development and distribution. Fundamentals of Linux will help you learn all the essentials of the Linux command line required to get you started. Multi-user System : resources like hard disk, memory, application program are accessible to multiple user at the same time. all computers are connected to main whose resources are availed by all users. Advantages of Linux Multi-user System : A user uses the connected computer and the peripheral attached to it, say for instance a printer. Each user can access same data on their own computer. If one computer in the network gets error then other computers get affected and that system handles this efficiently. Multiple users can run multiple program each at the same time without interfering with each other or crashing the system. History and Versions of UNIX : Linux ope...