Thanks a lot Bob for your comprehensive explanation and nice solution. On Tue, 27 Sep 2011 22:04:11 -0600, Bob Proulx wrote: > When experimenting with shells and modifying your .profile *always* keep > a second terminal open . . . So true, lesson learned the hard way. :-) -- Tong (remove underscore(s) to reply) http://xpt.sourceforge.net/techdocs/ http://xpt.sourceforge.net/tools/