The Amazon EMR command line interface (CLI) is a tool you can use to launch and manage clusters from the command line.
The Amazon EMR CLI is no longer under feature development. Customers are encouraged to use the Amazon EMR commands in the AWS CLI instead.
The AWS Command Line Interface version 1.4 provides support for Amazon EMR. We recommend you download and install the AWS CLI instead of using the Amazon EMR CLI. For more information, see http://aws.amazon.com/cli/.