title: Cannot perform a cyclic copy
body: <p>I have a folder <code>c:\data\_backup</code>.
  I want to copy all of the files that are in <code>data</code> folder to <code>_backup</code>, then I created a script <code>run.cmd</code> in the folder <code>_backup</code> but I have no success, because it says:</p>
  
  <blockquote>
  <pre><code>Can not perform a cyclic copy
  0 File (s) copied
  Press any key to continue. . .
  </code></pre>
  </blockquote>
  
  <p>I use the following script:</p>
  
  <pre><code>cd..
  xcopy ".\*" "%cd%\_backup\%date:~-4,4%-%date:~4,2%-%date:~7,2%" /s /i /y
  pause
  </code></pre>