fsck(8) on FreeBSD
The text 2e7f8c623e80, as FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.
filesystem consistency check and interactive repair
Flags it lists
-
-b -
-c -
-f -
-l -
-m -
-n -
-p -
-y