title: Why do I get 'permission denied' after using ./file2 in Linux?
body: <p>For example I have a file named <code>file2</code> that echoes something.</p>
  
  <p>So in the shell, after typing this</p>
  
  <pre class="lang-none prettyprint-override"><code># ./file2
  </code></pre>
  
  <p>It shows</p>
  
  <blockquote>
    <p>Permission denied</p>
  </blockquote>
  
  <p>Where am I wrong here?</p>