rpc.umntall(8) on FreeBSD
The text 795257fa22d8, as FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.
notify NFS servers about unmounted NFS filesystems
Flags it lists
-
-e -
-h -
-k -
-p -
-v