umount(8) on FreeBSD
The text 01f131a0e5a7, as FreeBSD 4.11-RELEASE, FreeBSD 4.10-RELEASE, FreeBSD 4.9-RELEASE, FreeBSD 4.8-RELEASE, FreeBSD 4.7-RELEASE, FreeBSD 4.6.2-RELEASE, FreeBSD 4.6-RELEASE, FreeBSD 4.5-RELEASE shipped it.
unmount filesystems
Flags it lists
-
-A -
-a -
-f -
-h -
-t -
-v