Home / ubuntu / Questions / 1397580
Accepted
Chan Kim
Asked: 2022-03-15 21:50:44 +0800 CST

How can I take numbers in hex format and do arithmatic and output in hex format in bash shell script?

  • 772

In bash, I wish I could output sum of two input values, all the input and output string represented in hex format as follows.
This is what I want to do.

$ script1 0x80200000 0x800
sum = 0x80200800
$

How should I write the script 'script1' for this? Of course this doesn't work.

sum = $1 + $2
echo "sum = " $sum
command-line

1 Answers

  1. Best Answer

    You can use arithmetic expansion, which supports 0x hex values but outputs in base 10, and print in hex using printf:

    $ printf "%#X\n" $(( 0x80200000 + 0x800 ))
0X80200800
$ printf "%#x\n" $(( 0x80200000 + 0x800 ))
0x80200800
    • 8