Set Up Your Environment

Set Up Your Environment

In this lesson — part of Getting Started — you'll learn set up your environment in Erlang and why it matters in real work.

Why it matters

You can't learn by reading alone — a working environment lets you run code and see results immediately.

Key ideas

• Install the toolchain and an editor
• Run a program from the terminal
• Understand the write → run → observe loop
• Know where to get help

In practice

Here's the idea in pseudocode — the exact syntax varies by language:

# install Erlang, then run your first program
erlang hello.src

Try it yourself

Exercise: Install Erlang, create a file that prints "Hello, world", and run it.

Recap

You now understand set up your environment and can apply it in Erlang. Mark this lesson complete and continue to the next one.