What is Linux Linux is OS which is build by Linux Torvalds in 1991. It is open source, free to use Linux was originally build for coder and programmers, then over the years GUI start getting implemented on Linux The source code of Linux is freely available to it's user's. Different versions of Linux are Ubuntu, Redhat, Solaris, Linux mint etc. See the Desktop of Linux Mint Two major things you need to know before digging up into Linux. Shell and Kernal Both shell and kernal are part of OS, both are used for performing any operation on system, when user give any command to system first it goes to shell parts. Kernel is computer program that is the core of a computer's OS. with complete control over everything in the system. On most system. it is first program loaded on start-up Shell is basically a program that accept the cmd from keyboard and send to OS to perform. If you ever used GUI, you have probably seen the terminal and console, tha...