title: cat * command in linux
body: <p>What does cat * command do in Linux Terminal?
  I used it along with a file-name</p>
  
  <pre><code>cat * file-name
  </code></pre>
  
  <p>I got a large output, with lots of garbage characters and proper formatted text. Towards the end I felt it was the kernel configuration parameters and at last was my file. I am guessing it is the ram content, that was displayed. Is that right? </p>