scp(1) on macOS
The text c23cc078501d, as Mac OS X 10.3.9, Mac OS X 10.3.8, Mac OS X 10.3.7, Mac OS X 10.3.6, Mac OS X 10.3.5, Mac OS X 10.3.4, Mac OS X 10.3.3, Mac OS X 10.3.2, Mac OS X 10.3.1, Mac OS X 10.3 shipped it.
secure copy (remote file copy program)
Flags it lists
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-B -
-C -
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-S -
-c -
-i -
-l -
-o -
-p -
-q -
-r -
-v