title: alternatives to long-running `find` command in unix
body: <p>I want to delete files that are older than 7 days, and I'm using this command to do so:</p>
  
  <pre><code>find /directory -mtime +7 -exec rm -f {} \;
  </code></pre>
  
  <p>It is working fine except it takes too long. Is there any other way to delete files older than 7 days, e.g. without using <code>find</code>?</p>