On Thu, Jul 22, 2010 at 2:57 AM, Joel Cartwright wrote: > Perhaps it would be simpler to use the $( ) alternative to ` `, where > there is less possibility for confusion over characters. As below: > >        rosrun rviz rviz -d $(rospack find turtle_tf) /rviz/turtle_rviz.vcg hi Joel, The backtick characters are part of bash syntax. We can't do much about that. brian.