This book is an exploration of the AWS (Amazon Web Services) CLI (Command Line Interface). This is a tool which makes it easy for you to manage your services which are running on the AWS. Of course, for you to be able to use this tool, you must have created an account with AWS and installed the AWS CLI tool. This book guides you on how to do this and the various ways on how to install the AWS CLI are explored. AWS CLI can be used in the VPC (Virtual Private Cloud). Note that instances created inside a VPC can only communicate with other instances found in that VPC. This book guides you to setup and use the AWS CLI inside a Virtual Private Cloud (VPC). After MapReduce jobs have been created in Java, they are usually encoded into Jar. The AWS CLI can also be used for the purpose of executing such jobs. This book guides you on how to do this excellently. The SQS for sending messages is a common occurrence in most companies and among individuals. The AWS CLI can be linked with the SQS, and one will be in a position to achieve this. This book guides you on how to do this. It is also possible for one to make the AWS Lambda and the Kinesis to work together for a greater effect. This book guides you on how to implement this. The Key Management Service (KMS) is a good technique by which we can keep our secrets. This book guides you on how to use this for that purpose.