diff --git a/proj/y2t/handler.php b/proj/y2t/handler.php
index efc5d3d..0c8520a 100644
--- a/proj/y2t/handler.php
+++ b/proj/y2t/handler.php
@@ -35,7 +35,16 @@
   echo $output;
 
   echo nl2br("\n END OF THE OUTPUT\n");
-  echo "check"
+  echo "check";
+
+  $url = 'https://www.youtube.com/watch?v=GNbTRJHbC4Q';
+  $cmd = 'youtube-dl ' . escapeshellarg($url);
+  exec($cmd, $output, $ret);
+  echo 'output: ';
+  var_export($output);
+  echo "\nret: ";
+  var_export($ret);
+
 ?>