terraform/website/source/docs/commands/output.html.markdown

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docs	Command: output	docs-commands-output	The `terraform output` command is used to extract the value of an output variable from the state file.

Command: output

The terraform output command is used to extract the value of an output variable from the state file.

Usage

Usage: terraform output [options] [NAME]

With no additional arguments, output will display all the outputs for the root module. If an output NAME is specified, only the value of that output is printed.

The command-line flags are all optional. The list of available flags are:

• -json - If specified, the outputs are formatted as a JSON object, with a key per output. If NAME is specified, only the output specified will be returned. This can be piped into tools such as jq for further processing.
• -state=path - Path to the state file. Defaults to "terraform.tfstate".
• -module=module_name - The module path which has needed output. By default this is the root path. Other modules can be specified by a period-separated list. Example: "foo" would reference the module "foo" but "foo.bar" would reference the "bar" module in the "foo" module.