fsck(8) on FreeBSD
The text 4f01cdc7f40a, as FreeBSD 11.1-RELEASE shipped it.
file system consistency check and interactive repair
Flags it lists
-
-B -
-C -
-F -
-T -
-c -
-d -
-f -
-n -
-p -
-t -
-v -
-y