hexdump(1) on OpenBSD
The text f84579a2e9eb, as OpenBSD 3.0, OpenBSD 2.9 shipped it.
ascii, decimal, hexadecimal, octal dump
Flags it lists
-
-b -
-c -
-d -
-e -
-f -
-n -
-o -
-s -
-v -
-x