gistfile1.txt

$ export AWS_SECRET_ACCESS_KEY=ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcd
$ export AWS_ACCESS_KEY_ID=ABCDEFGHIJKLMNOPQRST
$ aws iam get-user
{
    "User": {
        "UserName": "emr",
        "Path": "/",
        "CreateDate": "2016-03-11T14:32:08Z",
        "UserId": "AIDAID746LKJUJI5SGLOC",
        "Arn": "arn:aws:iam::548698731369:user/emr"
    }
}