ple</code>.</li>
        </ol>


        <h3 id="reading-a-file-the-quick-and-easy-way">Reading a file: the quick and easy way</h3>


        <p>Files are useful because they contain information. Let's see what
          <code>unix.txt</code> contains. Type in the following command:
        </p>

        <pre><code>cat unix.txt</code></pre>

        <p>This prints out a list of all the useful UNIX commands we've seen so far. The
          <code>cat</code> command prints the contents of a file to the screen.