arch(1) on macOS
The text 9f0c7e21e7e7, as macOS 11.5, macOS 11.4, macOS 11.3, macOS 11.2, macOS 11.1 shipped it.
print architecture type or run selected architecture of a universal binary
Flags it lists
-
-32 -
-64 -
-c -
-d -
-e -
-h