title: Debian: deb command not found. How can i fix it?
body: <p>I am trying to install graphics card Nvidia Geforce 660 on my desktop. Os: debian 8.</p>
  
  <p>Here is the wiki which gives guidelines : <a href="https://wiki.debian.org/NvidiaGraphicsDrivers#jessie-304xx" rel="noreferrer">https://wiki.debian.org/NvidiaGraphicsDrivers#jessie-304xx</a></p>
  
  <p>But as soon as I am on the first step:</p>
  
  <pre><code>deb http://http.debian.net/debian/ jessie main contrib non-free
  
  bash: deb: command not found
  </code></pre>
  
  <p>How can I install deb?</p>