ascii to hex converter. useful for iwconfig key parameter

#!/usr/bin/env bash

echo -n "$1 (64-bit) : " 
echo -n $1 | hexdump -e '5/1 "%02x" "\n"'
echo -n "$1 (128-bit): "
echo -n $1 | hexdump -e '13/1 "%02x" "\n"'