Hi Guys May be this is a silly question. :-) Is there a quick command line check to find out which ROS version (C Turtle, Box Turtle, diamondback) do I have ? Regards Arkapravo -- Arkapravo Bhaumik E-mail : arkapravobhaumik@gmail.com Blogs : http://mobotica.blogspot.com/, http://3chevrons.blogspot.com/ Twitter : @abhaumik Skype : arkapravo