hexdump(1) on OpenBSD
The text 2f1af1a4ff81, as OpenBSD 3.3, OpenBSD 3.2, OpenBSD 3.1 shipped it.
ascii, decimal, hexadecimal, octal dump
Flags it lists
-
-C -
-b -
-c -
-d -
-e -
-f -
-n -
-o -
-s -
-v -
-x