Strange. As I did only copy & paste from the widget code snippet, maybe something happened afterwards. Maybe there are additional line breaks. There should not by any line breaks.

What do you get when you try the command on the command line (in the XTerm)?

To make sure, there are no conversion problems, I have attached the exported widget to this post. Let's hope there are no automatic conversions of txt files involved in the forum!. Please try and import it and check if it works.

Goetz