wipe(1) on Linux
The text 49ca4b205e11, as Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
securely erase files from magnetic media
Flags it lists
-
-D -
-F -
-Q -
-Z -
-e -
-h -
-k -
-l -
-o -
-v