Script that will set caps lock as upper or lower by choice

I am using Arch Linux and Openbox window manager with all the latset updates For years I have struggled with the caps lock key. I never know it's status until I come to use it. The same for all of us. I have to push it a few times, and experiment to find out where it is, upper or lower, then get it where I want it, upper or lower Obviously a huge waste of time I am planning to - leave caps lock key as a toggle caps key - assign = key to upper case - assign # key to lower case I believe this will be much simpler I can use a script to release these keys if necessary and put everything back to default as I am sure will be necessary now and again How can I distinctly get set either upper or lower case via a script?