rpc.umntall(8) on FreeBSD
The text 1af9d3347d34, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
notify NFS servers about unmounted NFS file systems
Flags it lists
-
-e -
-h -
-k -
-p -
-v