terraform/website/source/docs/provisioners/local-exec.html.markdown

---
layout: "docs"
page_title: "Provisioner: local-exec"
sidebar_current: "docs-provisioners-local"
description: |-
  The `local-exec` provisioner invokes a local executable after a resource is created. This invokes a process on the machine running Terraform, not on the resource. See the `remote-exec` provisioner to run commands on the resource.
---

# local-exec Provisioner

The `local-exec` provisioner invokes a local executable after a resource is
created. This invokes a process on the machine running Terraform, not on the
resource. See the `remote-exec`
[provisioner](/docs/provisioners/remote-exec.html) to run commands on the
resource.

Note that even though the resource will be fully created when the provisioner is
run, there is no guarantee that it will be in an operable state - for example
system services such as `sshd` may not be started yet on compute resources.

## Example usage

```hcl
resource "aws_instance" "web" {
  # ...

  provisioner "local-exec" {
    command = "echo ${aws_instance.web.private_ip} >> private_ips.txt"
  }
}
```

## Argument Reference

The following arguments are supported:

* `command` - (Required) This is the command to execute. It can be provided
  as a relative path to the current working directory or as an absolute path.
  It is evaluated in a shell, and can use environment variables or Terraform
  variables.