rdump(8) on Linux
The text ebeb6e3f1477, as Debian 2.0 (Hamm) shipped it.
filesystem backup
Flags it lists
-
-0-9 -
-B -
-T -
-W -
-b -
-c -
-d -
-f -
-h -
-n -
-s -
-u -
-w