I used to be an average Windows operating system user, who was just using a system to browse the internet and play computer games, then my friends Irak Rigia introduced me to Linux. My early days with the newly introduced OS were not so good, I used the Ubuntu GUI to perform my basics tasks such as moving files and deleting files. But gradually I started learning terminal basic commands and things changed. Now I have four inter-connected Linux machines at home which I use to learn Linux and networking. Now I have found linux in a straightforward form, and understood the principle behind an operating system. The intention of this article is not to show Windows as a bad OS, they are great and also amazing in terms of user interface, but they don't reveal what goes behind the scene. But again it’s personal preference. Ok, that was about my journey with Linux, now let me tell you that how you can be a power user? and what can be accomplished using Linux? Linux