I have been a solid user of SCCS and successors since SCCS became available out of the box on SunOS.
The delget/deledit pessimistic model of SCCS (and RCS, and CVS?) were poor compared to newer VCSes such as SVN and git.
The pain of getting SCCS (and even RCS) to work for multiple networked users was ... well ... profitable for me at my hourly consultancy rate...
But even SCCS saved me/others from many traumas and detected file corruption (even a failing SCSI disc connection once, IIRC).
I have been a solid user of SCCS and successors since SCCS became available out of the box on SunOS.
The delget/deledit pessimistic model of SCCS (and RCS, and CVS?) were poor compared to newer VCSes such as SVN and git.
The pain of getting SCCS (and even RCS) to work for multiple networked users was ... well ... profitable for me at my hourly consultancy rate...
But even SCCS saved me/others from many traumas and detected file corruption (even a failing SCSI disc connection once, IIRC).