docs/manual/source/cli/index.html.md

---
title: Command Line
---

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##Overview

Interaction with Apache PredictionIO is done through the command
line interface. It follows the format of:

```pio <command> [options] <args>...```

You can run ```pio help``` to see a list of all available commands and ```pio
help <command>``` to see details of the command.

Apache PredictionIO commands can be separated into the following
three categories.

##General Commands
```pio help```          Display usage summary. `pio help <command>` to read about a specific subcommand.

```pio version```       Displays the version of the installed PredictionIO.

```pio status```        Displays install path and running status of PredictionIO system and its dependencies.


##Event Server Commands

```pio eventserver```   Launch the Event Server.

```pio app```           Manage apps that are used by the Event Server.

```pio app data-delete <name>``` deletes all data associated with the app.

```pio app delete <name>``` deletes the app and its data.

  ```--ip <value>``` IP to bind to. Default to localhost.

  ```--port <value>``` Port to bind to. Default to 7070.


```pio accesskey```     Manage app access keys.


##Engine Commands
Engine commands need to be run from the directory that contains the engine
project. ```--debug``` and ```--verbose``` flags will provide debug and
third-party informational messages.

```pio build```         Build the engine at the current directory.

```pio train```         Kick off a training using an engine.

```pio deploy```        Deploy an engine as an engine server.

```pio batchpredict```  Process bulk predictions using an engine.

For ```deploy``` & ```batchpredict```, if ```--engine-instance-id``` is not
specified, it will use the latest trained instance.