title: How to edit Linux source code?
body: <p>I want to modify the source code for Linux. I don't know from where to start.</p>
  
  <p>I want to study the code and then modify it and see the changes by runnng it. Where do I start?
  I am a college passout and I know C and C++ but never edited the source code of Linux.
  I want a small light-weight Linux that has small source code files so that I can study it and modiy. To create my own one.
  Which Linux will be best for me and how do I get started with editing the soucre code?
  Will just installing Linux also give me its source code?</p>