system command in Process chain

Hello,

I have a system command in the process chain which points to a command file that is supposed to run. My problem is that when I transport the PC, the path on the system command remains same.

I want it to change the path from /md.... in dev to /mq... in QA and /ma... in PROD.

Is there anyway to automate this process? Right now i have to keep track of it and change the system command in each system. I have missed a couple and it creates some problems.

Thanks

Sam