Installation
For information on how to install and configure the command line client, see Install the Amazon EMR Command Line Interface in the Amazon Elastic MapReduce Developer Guide.
Usage
For information about how to use the command line client to launch, terminate, modify, and investigate job flows, see Command Line Interface Options in the Amazon Elastic MapReduce Developer Guide.
Change Log
For information about the releases and changes in the CLI versions, see Command Line Interface Releases in the Amazon Elastic MapReduce Developer Guide.
Additional Documentation
The archive comes with a README file.