Ascii/Hex convert in bash

Question

I\'m now doing it this way:

[root@~]# echo Aa|hexdump -v
0000000 6141 000a                              
0000003
[root@~]# echo -e \"\\x41\\x41\\x41\\x41\"
A         


        

Answer 1

$> printf "%x%x\n" "'A" "'a"
4161