If you’ve been using UNIX systems for a while (including Mac OS X, Linux or anything else remotely similar) you might know about the LANG environment variable. It’s used to select how your computer treats language-specific features. You can find out more than you ever wanted to know by looking here: http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html
Mostly it doesn’t [...]