GNU Hello
produces a familiar, friendly greeting
The GNU Hello program produces a familiar, friendly greeting.
Yes, this is another implementation of the classic program that prints "Hello,
world!" when you run it. Unlike the elementary version often seen, GNU Hello
processes its argument list to modify its behavior, supports greetings in many
languages, and so on. Of course, the primary purpose of this program is to
demonstrate how to write other programs that do these things; it serves as a
model for all of the GNU coding standards and other recommended practices.
The primary purpose of this Zero Install interface is to demonstrate how to
compile binary packages from sources that follow the GNU automake system.
http://www.gnu.org/software/hello/