The rc shell is the command line interface for the Plan 9 operating system. It resembles the Bourne shell, and uses much of the same syntax. A port of rc for Unix is also available. See also Unix shell External links Plan 9 rc manual page (http://plan9.bell-labs.com/magic/man2html/1/rc) Unix port of the rc shell (http://www.star.le.ac.uk/~tjg/rc/)