I wholeheartedly agree with this blog post. I believe someone on here yesterday was asking about config file locations and setting them manually. This is in the same vein. I can’t tell you how many times a command line method for discovering the location of a config file would have saved me 30 minutes of googling.
And also: where it found the config file it is actually using at the moment. This would cover the 90% of the cases in which you just want to change a single Key to a different value or something or so…