--- layout: "docs" --- # Command-Line: Validate The `packer validate` command is used to validate the syntax and configuration of a [template](/docs/templates/introduction.html). The command will return a zero exit status on success, and a non-zero exit status on failure. Additionally, if a template doesn't validate, any error messages will be outputted. Example usage: ``` $ packer validate my-template.json Template validation failed. Errors are shown below. Errors validating build 'vmware'. 1 error(s) occurred: * Either a path or inline script must be specified. ``` ## Options * `-syntax-only` - Only the syntax of the template is checked. The configuration is not validated.