website: apply docs

website/source/docs/commands/apply.html.markdown

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+---
+layout: "docs"
+page_title: "Command: apply"
+sidebar_current: "docs-commands-apply"
+---
+
+# Command: apply
+
+The `terraform apply` command is used to apply the changes required
+to reach the desired state of the configuration, or the pre-determined
+set of actions generated by a `terraform plan` execution plan.
+
+## Usage
+
+Usage: `terraform apply [options] [dir]`
+
+By default, `apply` scans the current directory for the configuration
+and applies the changes appropriately. However, a path to another configuration
+or an execution plan can be provided. Execution plans can be used to only
+execute a pre-determined set of actions.
+
+The command-line flags are all optional. The list of available flags are:
+
+* `-no-color` - Disables output with coloring.
+
+* `-state=path` - Path to the state file. Defaults to "terraform.tfstate".
+
+* `-state-out=path` - Path to write updated state file. By default, the
+  `-state` path will be used.
+
+* `-var 'foo=bar'` - Set a variable in the Terraform configuration. This
+  flag can be set multiple times.
+
+* `-var-file=foo` - Set variables in the Terraform configuration from
+   a file. If "terraform.tfvars" is present, it will be automatically
+   loaded if this flag is not specified.
+