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Learning Elixir by Kenny Ballou

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Hello, World!

Now that Elixir is installed on your machine, let's fire up the interactive Elixir prompt. Open a shell/terminal emulator and run iex.

You should see the following text printed on the terminal:

$ iex
Erlang/OTP 17 [erts-6.4] [source] [64-bit] [smp:8:8] [async-threads:10] [hipe] [kernel-poll:false]

Interactive Elixir (1.0.4) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)>

Before we continue, let's talk about some of the output of running iex. The line starting with "Erlang/OTP..." contains the Erlang emulator information tags. Each tag describes something about the underlying runtime VM. Here are some short explanations for each tag shown on my machine:

  • Erlang/OTP 17: This tells us the current version of Erlang.
  • [erts-6.4]

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