summarize the PredictionIO commands we have used in this chapter and the previous one for a quick reference:
| Prediction Engine Command | Description |
| pio app new <newapp> | This creates a new predictionIO application |
| pio eventserver & | This runs an Event Server if using MYSQL or PostgreSQL |
| pio-start-all | This starts PredictionIO Event Server; HBase; and ElasticSearch, if using HBASE and ElasticSearch |
| pio app list | This lists all of the apps created in its corresponding ID and Access Key |
| pio build --verbose | This builds an engine |
| pio train | This trains the engine |
| pio deploy | This deploys the engine |
