xmlcatalog(1) on macOS
The text e9f7d1042141, as Mac OS X 10.8.5, Mac OS X 10.8.4, Mac OS X 10.8.3, Mac OS X 10.8.2, Mac OS X 10.8.1, Mac OS X 10.8 shipped it.
Command line tool to parse and manipulate XML or SGML catalog files.
Flags it lists
-
--add -
--create -
--del -
--no-super-update -
--noout -
--sgml -
--shell -
--verbose -
-v