title: use ls command show files sort by copy time?
body: <p>I have a remote machine and I <code>scp</code>-ed a bunch files from the host.
  I want to use <code>ls</code> command to show these files, sorted by copied time.
  How can I do this?</p>
  
  <p>I tried <code>ls -lt</code> but it doesn't seem right. It only shows the file created time, not my copying time.</p>