hdparm(8) on Linux
The text 38911203eee9, as Debian 4.0 (Etch) shipped it.
get/set hard disk parameters
Flags it lists
-
--Istdin -
--Istdout -
--direct -
-A -
-B -
-C -
-D -
-E -
-H -
-I -
-K -
-L -
-M -
-P -
-Q -
-R -
-S -
-T -
-U -
-W -
-X -
-Y -
-Z -
-a -
-b -
-c -
-d -
-f -
-g -
-h -
-i -
-k -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-u -
-v -
-w -
-x -
-y -
-z