Chapter 1. Welcome to Linux

The Linux kernel was developed by Finnish undergraduate student Linus Torvalds, who used the Internet to make the source code immediately available to others for free. Torvalds released Linux version 0.01 in September 1991.

The new operating system came together with a lot of hard work. Programmers throughout the world were quick to extend the kernel and develop other tools, adding functionality to match that already found in both BSD UNIX and System V UNIX (SVR4) and adding new functionality as well.

The Linux operating system, ...

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