title: Are system() C functions ok?
body: <p>I'm writing a C program that includes an ABOUT page. I was thinking that when user chooses to read that page, the console would clear (like if I execute clear command in linux bash) and show the about page content. 
  After browsing a little I found this solution:</p>
  
  <pre><code>system("clear");
  </code></pre>
  
  <p>Is this ok? I mean, is this safe to use in a program? What are the advantages and disadvantages? </p>