scrub(1) on Linux
The text 7f504c908c81, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
write patterns on disk/file
Flags it lists
-
--blocksize -
--device-size -
--dirent -
--dry-run -
--force -
--freespace -
--help -
--no-hwrand -
--no-link -
--no-signature -
--no-threads -
--pattern -
--remove -
--version -
-D -
-L -
-R -
-S -
-X -
-b -
-f -
-h -
-n -
-p -
-r -
-s -
-t -
-v