I bet you thought this would be the article where I showed you how to make your computer curse more. Well, language can mean much more than that. In fact, Apple has dedicated a whole binary to switching your default language in OS X, in languagesetup. This command, located at /usr/sbin/languagesetup, is capable of changing the default language used by a system to a number of different languages. There are other ways to accomplish this, but none quite so easy. To get started, note that there are two ways to run languagesetup. The first is interactively, which I mostly use to figure out what I actually want to do with…