Things to know before hand !

I'm giving a quick info about a few topics you need to know before. If you know one already, you can skip it.


Linux : Linux is an free and open source operating system much better than Windows. It is much less prone to viruses and tweak-able to a much greater Windows. It is more stable and secure also. Almost all the supercomputers of the world are powered by linux. It was founded by Linus Torvalds.
You can find more about linux on its wikipedia page.


my sabayon-linux desktop




Command Line : Command line refers to interface in which you interact with the computer using commands instead of using your mouse to click and select options etc. 
For several reasons command line is more efficient and faster than GUI. One more reason I like it more is the fact that you are able to see exactly what is happening under the hood instead of supposing things.


ubuntu command line showing the top command
Terminal : You can see 'terminal' on the top-left of the above snapshot. A terminal is the place where you enter those magical commands. we'll talk about it soon. It gets you to CLI while you are enjoying the GUI. :)


Script : A script is simply a collection of several commands that you would have typed in command line. This enables you to run just a single file instead of typing all the commands again and again by yourself.