A delta is a set of changes made to a file under SCCS custody.
To identify and keep track of a delta, it is assigned an SID
(SCCS IDentification) number.
The SID for any original file turned over to SCCS is composed of
release number 1 and level number 1, stated as 1.1.
The SID for the first set of changes made to that file,
that is, its first delta, is release 1 version 2, or 1.2.
The next delta would be 1.3, the next 1.4, and so on.
(For more on delta numbering, see
At this point, it is enough to know that by default SCCS
assigns SIDs automatically.
Creating an SCCS file with admin
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 27 April 2004