Writing dynamic sql to txt file

Problem: We enter configuration settings of an application through a GUI front end to development database executing a stored procedure.

Then these settings need to be done in testing database, and then finally to production database.
But this is like re-entering those values in testing or production environments.

I am wondering if there is a way we could save the stored procedure script we use in development database in txt file and then execute it in other environments.
We don't have permissions to use xp_cmdshell to move dynamic sql to txt file.
Is there any other way to achive this from ASP.NEt front end -like returing the script from stored procedure (as xml maybe) and then saving to a txt file?

You can script sp in ssms then run it on any server.