CSSC is replacing the GNU project after traditional Unix SCCS. CSSC is the GNU replacement for more traditional Unix SCCS. CSSC project aims for full compatibility (including precise nuances of behavior, support for all options of the command line, and most cases in bug-for-bug compatibility) and comes with a large Read More automated test you are currently using SCCS for version control, you should be able to close only in CSSC, even if you have a large number of shell scripts which are layered on top of SCCS and depend on. This will allow you to develop on and for GNU / Linux if your source code exists in the SCCS repository. CSSC also allows you to migrate to a more modern version control.