diskseekd(1) on Linux
The text 6aaa9d77276f, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
disk seek daemon; simulates Messy Dos' drive cleaning effect
Flags it lists
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-d -
-i -
-p