xxd(1) on Linux
The text 01232b0afdcc, as Debian 2.0 (Hamm) shipped it.
make a hexdump or do the reverse.
Flags it lists
-
-E -
-EBCDIC -
-a -
-autoskip -
-h -
-help -
-i -
-include -
-p -
-postscript -
-ps -
-r -
-revert -
-s -
-seek -
-u -
-v -
-version