What is an RCS file?
An RCS file stores many versions of a single source file, all in one place. During the lifetime of a project, its source files evolve. Each source file starts with an initial version. Over time, changes are made to the source files to fix bugs and add features. At key moments, a programmer might wish to save the current version of a source file. He can do this by checking it into its corresponding RCS file. From a given RCS file, one can later extract any desired version of the source file. This makes it easy to undo changes that turned out to be ill-advised, or to recreate an earlier release of the software. • What is a CVS repository? A CVS repository is a collection of RCS files that are managed together. For example, the RCS files for all of the sources in a project would typically be stored together in a CVS repository.
