What command is used to initialize a Terraform working directory?

The command used to initialize a Terraform working directory is "terraform init". This command sets up the necessary files and directories Terraform needs to manage your infrastructure. When you run "terraform init", it prepares the working directory by downloading the necessary providers specified in your configuration files, initializing the backend for state management, and setting up the metadata that Terraform requires to operate effectively.

This initialization step is crucial because it ensures that the correct provider plugins are available and that the configuration is ready for further commands such as validating the configuration, planning a deployment, or applying changes. In essence, "terraform init" is the first step you take when starting to work with Terraform in a new project or after making changes to your configuration.