umount(8) on FreeBSD
The text 2aea39713093, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
unmount file systems
Flags it lists
-
-A -
-F -
-N -
-a -
-f -
-h -
-n -
-t -
-v