Multi-purpose tool built for Go AWS SDK
$ export AWS_ACCESS_KEY_ID=<<Your-api-access-key>>
$ export AWS_SECRET_ACCESS_KEY=<<your-secret-access-key>>
$ go run aws_IAM.go createUser <username>
$ go run aws_IAM.go listAccessKey <username>
$ go run aws_IAM.go listUsers
$ go run aws_IAM.go updateUserName <currentName> <newName>
$ go run aws_IAM.go deleteAccessKeyID <userName> <accessKeyId>