############################ Command-line Interface (CLI) ############################ **Audience:** Users looking to create a command line interface (CLI) for their application. ---- ************** What is a CLI? ************** A Command-line Interface (CLI) is an user interface (UI) in a terminal to interact with a specific program. .. note:: The Lightning guideline to build CLI is `lightning_app ...` or ` ...`. As an example, Lightning provides a CLI to interact with your Lightning Apps and the `lightning.ai `_ platform as follows: .. code-block:: bash main ├── fork - Forks an App. ├── init - Initializes a Lightning App and/or Component. │ ├── app │ ├── component │ ├── pl-app - Creates an App from your PyTorch Lightning source files. │ └── react-ui - Creates a React UI to give a Lightning Component a React.js web UI ├── install - Installs a Lightning App and/or Component. │ ├── app │ └── component ├── list - Lists Lightning AI self-managed resources (apps) │ └── apps - Lists your Lightning AI Apps. ├── login - Logs in to your lightning.ai account. ├── logout - Logs out of your lightning.ai account. ├── run - Runs a Lightning App locally or on the cloud. │ └── app - Runs an App from a file. ├── show - Shows given resource. │ └── logs - Shows cloud application logs. By default prints logs for all currently available Components. ├── stop - Stops your App. └── tree - Shows the command tree of your CLI. Learn more about `Command-line interfaces here `_. ---- .. include:: index_content.rst