osgversion(1) on Linux
The text 668b21d44abd, as Debian 10 (Buster) shipped it.
manual page for osgversion 3.4.1
Flags it lists
-
--help -
--major-number -
--minor-number -
--openthreads-soversion-number -
--openthreads-version-number -
--patch-number -
--so-number -
--version-number -
-h