создавать и администрировать файлы SCCS (РАЗРАБОТКА) (create and administer SCCS files (DEVELOPMENT))
Использование в приложениях (Application usage)
It is recommended that directories containing SCCS files be
writable by the owner only, and that SCCS files themselves be
read-only. The mode of the directories should allow only the
owner to modify SCCS files contained in the directories. The mode
of the SCCS files prevents any modification at all except by SCCS
commands.
