fsck_ufs(8) on FreeBSD
The text dd0d43822b9a, as FreeBSD 5.4-RELEASE, FreeBSD 5.3-RELEASE shipped it.
file system consistency check and interactive repair
Flags it lists
-
-B -
-F -
-b -
-c -
-f -
-m -
-n -
-p -
-y