In the same place where the bat file is there is also a .command file (actually 2 one for v4 and one for v4 to v3) which is the mac version of a bat file.

it is in the /Runtime/libraries/!DAZ/ folder

in my mac the full paths are: /Users/Shared/v4/Runtime/libraries/!DAZ/DzCreateExPFiles-V4.command ; exit; and: /Users/Shared/v4/Runtime/libraries/!DAZ/DzCreateExPFiles-V4V3.command ; exit;

If you correct the path to reflect your setup you could also just paste the above commands into your terminal at it will create/ initialize the files