HP-UX Reference (11i v1 05/09) - 4 File Formats (vol 8)

s
sccsfile(4) sccsfile(4)
end @E DDDDD
The digit string is the serial number corresponding to the delta for the control line.
WARNINGS
SCCS files can be any length, but the number of lines in the text file itself cannot exceed 99999 lines.
SEE ALSO
admin(1), delta(1), get(1), prs(1).
HP-UX 11i Version 1: September 2005 − 3 − Hewlett-Packard Company Section 4−−247