"Over the past year, I've had the opportunity to teach
introductory Linux and BSD classes. Since BSD users primarily
attended the Linux classes and the Linux users primarily attended
the BSD classes, both groups had an interest in finding out more
about their open source counterparts.
"Students expected to find differences, but they often found the
particulars surprising. Some of the commands they customarily used
had different switches or were missing entirely, and certain
features had totally different implementations..."