how concatenate two variables in batch script?

Question

I want to do something like this in batch script. Please let me know if this is the proper or possible way to do it or any other way?

set var1=A

set var2=B

set         


        

Answer 1

Enabling delayed variable expansion solves you problem, the script produces "hi":

setlocal EnableDelayedExpansion

set var1=A
set var2=B

set AB=hi

set newvar=!%var1%%var2%!

echo %newvar%