su(1) on OpenBSD
The text 591856809aab, as OpenBSD 7.2, OpenBSD 7.1, OpenBSD 7.0, OpenBSD 6.9, OpenBSD 6.8 shipped it.
substitute user identity
Flags it lists
-
- -
-K -
-L -
-a -
-c -
-f -
-l -
-m -
-s