diff --git a/pages/do.php b/pages/do.php
index 8f3be4a..e635dc4 100644
--- a/pages/do.php
+++ b/pages/do.php
@@ -36,9 +36,13 @@ if(isset($_SESSION['LOGIN']))
             {
                 $filename = "/tmp/command".time().".txt";
                 $command = trim($_REQUEST['commandtext']);
-                file_put_contents($filename, $command);
-                
-                exec('cat '.$filename.' | socat EXEC:"docker attach '.$container['Id'].'",pty STDIN');
+
+                if($command != "")
+                {
+                    file_put_contents($filename, $command);
+
+                    exec('cat '.$filename.' | socat EXEC:"docker attach '.$container['Id'].'",pty STDIN');
+                }
             }
         }