--- layout: "docs" page_title: "Command: output" sidebar_current: "docs-commands-output" description: |- 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". Ignored when [remote state](/docs/state/remote/index.html) is used. * `-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. ## Examples These examples assume the following Terraform output snippet. ```ruby output "lb_address" { value = "${aws_alb.web.public_dns}" } output "instance_ips" { value = "${aws_instance.web.*.public_ip}" } ``` To list all outputs: ```text $ terraform output ``` To query for the DNS address of the load balancer: ```text $ terraform output lb_address my-app-alb-1657023003.us-east-1.elb.amazonaws.com ``` To query for all instance IP addresses: ```text $ terraform output instance_ips test = [ 54.43.114.12, 52.122.13.4, 52.4.116.53 ] ``` To query for a particular value in a list, use `-json` and a JSON command-line parser such as [jq](https://stedolan.github.io/jq/). For example, to query for the first instance's IP address: ```text $ terraform output -json instance_ips | jq '.value[0]' ```