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Ruby Hello World

The easiest way to run Ruby interactively is simply to type ``ruby'' at the shell prompt.


% ruby
puts "Hello, world!"
{{ tag }}, {{tag}},

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}
{{ parent.authors[0].realName || parent.author}}

{{ parent.authors[0].tagline || parent.tagline }}

{{ parent.views }} ViewsClicks
Tweet

{{parent.nComments}}