Note: SCCS users who are more familiar with RCS may benefit from the "Conversion Guide for SCCS Users" in Chapter 19, The Revision Control System , which lists SCCS commands and their RCS equivalents.
For more information, see Applying RCS and SCCS , listed in the Bibliography.
The Source Code Control System (SCCS) lets you keep track of each revision of a document, avoiding the confusion that often arises from having several versions of one file online. SCCS is particularly useful when programs are enhanced, but the original version is still needed.
All changes to a file are stored in a file named
Each set of changes is called a delta
and is assigned an S
entification string (sid
). The sid
consists of either two components: release and level numbers (in the form a