apropos(1) on OpenBSD
The text c93864326c94, as OpenBSD 5.0, OpenBSD 4.9, OpenBSD 4.8, OpenBSD 4.7, OpenBSD 4.6, OpenBSD 4.5 shipped it.
locate commands by keyword lookup
Flags it lists
-
-C -
-M -
-S -
-m -
-s