Language support

From GNUstepWiki

You can set your preference of language using the defaults command. It takes a list of languages, with the most left one being the most preferred. The list should contain at least one preferred language, otherwise GNUstep defaults to English.

Here is an example where the user prefers Turkish, then Dutch, then English.

defaults write NSGlobalDomain NSLanguages "(Turkish, Dutch, English)"

See also: NSDefaults