GNU Hello

{{Third-party|date=January 2025}}

{{Infobox software

|name = GNU Hello

|logo = Heckert GNU white.svg

|logo size = 100px

|developer = GNU Project

|operating system = GNU, Linux

| latest release version = {{wikidata|property|edit|reference|P348}}

| latest release date = {{start date and age|{{wikidata|qualifier|P348|P577}}}}

|genre = "Hello, world!"

|license = GPLv3

|website = {{Official website|https://www.gnu.org/software/hello/}}

}}

GNU Hello is an almost-trivial free software program that prints the phrase "Hello, world!" or a translation thereof to the screen.{{cite web |url=https://www.gnu.org/software/hello/ |title=GNU Hello}} It can print the message in different formats, or print a custom message.{{cite web |url=https://www.gnu.org/software/hello/manual/hello.html |title=GNU Hello manual}} The primary purpose of the program is to serve as an example of the GNU coding standards, demonstrate how to write programs that perform different tasks depending on their input, and to serve as a model for GNU maintainer practices. As such, it can be used as a template for new, more serious, software projects.