2 How to use the suite

By far the easiest way to use CSSC (or indeed SCCS) is to use VC-mode in GNU Emacs. See Version Systems in The GNU Emacs manual.

If you can’t use VC-mode, the BSD command sccs is a good interface to the SCCS suite (and hence CSSC).

Other than that, you will need to use each of the programs in the suite individually.