http://www.fmi.uni-passau.de/archive/doc/unix/unixhelp/Unixhelp/utilities1_sccs_put.html (Einblicke ins Internet, 10/1995) Putting files under SCCS control
Files are placed under the control of SCCS by making
an SCCS directory and creating the SCCS file. You
also have the option of placing ID keywords in each
file.