http://www.linuxjournal.com/content/heirloom-software-past-adventure?page=0,... I found ESR's exercise impressive. I first played it (FORTRAN on a mainframe) back in the late '70s. In Tracy Kidder's Pulitzer-winning documentary "The Soul of a New Machine" (https://en.wikipedia.org/wiki/The_Soul_of_a_New_Machine) the author recounted his mentoring into the art of computer software creation via a late night session playing this game. The game was included in every UNIX distribution because learning to play it is helpful preparation for learning to work with UNIX itself. Such a helpful explanation is of course not offered to newbies. It is understood by UNIX users that it IS a user-friendly operating system, it is just picky about who its users are. -- <not cent from sell> May the LORD God bless you exceedingly abundantly! Dave_Craig______________________________________________ "So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe." __--from_Nightfall_by_Asimov/Silverberg_________________