xxd(1) on Linux
The text 2e2810b1b4d2, as Debian 1.3 (Bo), Debian 1.2 (Rex) shipped it.
make a hexdump or do the reverse.
Flags it lists
-
-a -
-autoskip -
-h -
-help -
-i -
-include -
-p -
-postscript -
-ps -
-r -
-revert -
-s -
-seek -
-u -
-v -
-version