hd(1) on Linux
The text 2b4742a8f801, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
ASCII, decimal, hexadecimal, octal dump
Flags it lists
-
-C -
-b -
-c -
-d -
-e -
-f -
-n -
-o -
-s -
-v -
-x