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This is an example Ruby project to create a script which prints just "Hello, World!". You can use this repository as boilerplate of Ruby project.
$ gem install boilerpl8
$ boilerpl8 github:kwatch/hello-ruby myproject
$ cd myproject
$ RUBYLIB=$PWD/lib bin/hello
Hello, World!
Public Domain
(License of hello-ruby-boilerpl8 repository is public domain, but your project can adpot MIT or other license what you like.)