get -e indicates an intent to make a delta. First, get checks the following:
Floor and ceiling are flags in the SCCS file representing start and end of the range of valid releases.
A failure of any of the first three conditions causes the processing of the corresponding SCCS file to terminate.
If the above checks succeed, get -e causes the creation of a g-file in the current directory with mode 644 (readable by everyone, writable only by the owner) that is owned by the real user. If a writable g-file already exists, get terminates with an error.
Any ID keywords appearing in the g-file are not replaced by get -e because the generated g-file is subsequently used to create another delta.
In addition, get -e causes the creation (or updating) of the p.file that is used to pass information to the delta command.
$ get -e s.abcproduces (for example) on the standard output
1.3 new delta 1.4 67 lines