fuser(1) on OpenBSD
The text 4b6f3c48135d, as OpenBSD 6.2, OpenBSD 6.1, OpenBSD 6.0, OpenBSD 5.9 shipped it.
identify process IDs holding specific files open
Flags it lists
-
-M -
-N -
-c -
-f -
-k -
-s -
-u