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- Welcome to lesson three: learning HCL.

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In this lesson, you'll learn about

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Terraform's configuration language, HCL.

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First, you'll learn the basic structure

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of an HCL Terraform configuration.

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Then you'll see how to
configure Terraform's providers.

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Next, you'll learn about
data sources and resources.

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Then you will learn about

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how Terraform manages concurrency

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and dependencies in configurations.

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Next, you will learn
about Terraform outputs.

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Then you'll see how to
customize your configurations

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by using expressions and interpolation.

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Next, you'll learn about
Terraform's built in functions.

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Then you'll see how to accept user input

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with variables and local values.

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After that, you will
learn about conditionals

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and the Count and forEach properties.

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Then you'll learn HCL
data types and operators.

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Next, you'll learn about iteration in HCL,

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a powerful new feature in HCL 2.

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Finally, you'll see how
to format multiline text

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with heredocs and directives.