Intercept system commands from app

I'm on Android 7.1.2 (Nougat). I have an app that I am trying to pull the exact command /parameters that it is sending to one of my /system/bin apps. It is not in logcat and I haven't been able to find it with strace either. What I'm looking to do is replace the bin file in /system/bin with another file and give it the same name so it logs the command/parameters that's sent to the binary. Is that possible? And is so how? How would I go about getting this info.