How to use a system variable containing %1 in the name in *.bat file?

Question

cmd/bat

You need to call a system variable with the name %1c_filial% in the script, but in batch files with the command %1, %2, etc. cause the n-th argument, how to be?

Answer 1

Turn on
setlocal enabledelayedexpansion
and then use the desired variable like this:
echo.!1c_filial!
But it's better to immediately re-save it into a more digestible variable:
set "filial_1c=!1c_filial!"
and then use filial_1c