title: sort list of files by date in bash
body: <p>Given a text file containing some list of files, e.g.</p>
  
  <pre><code>$ cat file_list.txt
  /var/x/file1.txt
  /var/y/file2.txt
  &lt;etc&gt;
  </code></pre>
  
  <p>How can I sort this list of files by some criteria - like their last accessed time, or last changed time?</p>
  
  <p>Thanks in advance.</p>