pt-diskstats(1p) on Linux
The text 29d6e6a38a66, as Debian 7 (Wheezy) shipped it.
An interactive I/O monitoring tool for GNU/Linux.
Flags it lists
-
--columns-regex -
--config -
--devices-regex -
--group-by -
--headers -
--help -
--interval -
--iterations -
--sample-time -
--save-samples -
--show-inactive -
--show-timestamps -
--version