This assumes you have already configured the aws command line tool. If not, check out my article on Getting Started with the AWS CLI.

The aws iam list-instance-profiles command can be used to list the Instance Profiles you have created. If no role have been attached to the Instance Profile, something like this should be returned, where Roles is an empty list.

~]$ aws iam list-instance-profiles
{
    "InstanceProfiles": [
        {
            "Path": "/",
            "InstanceProfileName": "my-instance-profile",
            "InstanceProfileId": "AIPA2MITL76GNDM4CZFIM",
            "Arn": "arn:aws:iam::123456789012:instance-profile/my-instance-profile",
            "CreateDate": "2024-01-26T02:20:03+00:00",
            "Roles": []
        }
    ]
}

If one or more Roles have been attached to the Instance Profile, something like this should be returned.

~]$ aws iam list-instance-profiles
{
    "InstanceProfiles": [
        {
            "Path": "/",
            "InstanceProfileName": "my-instance-profile",
            "InstanceProfileId": "AIPA2MITL76GNDM4CZFIM",
            "Arn": "arn:aws:iam::123456789012:instance-profile/my-instance-profile",
            "CreateDate": "2024-01-26T02:20:03+00:00",
             "Roles": [
                {
                    "Path": "/",
                    "RoleName": "test",
                    "RoleId": "AROA2MITL76GF46NSCA6E",
                    "Arn": "arn:aws:iam::123456789012:role/my-role",
                    "CreateDate": "2024-01-26T02:13:17+00:00",
                    "AssumeRolePolicyDocument": {
                        "Version": "2012-10-17",
                        "Statement": [
                            {
                                "Effect": "Allow",
                                "Principal": {
                                    "AWS": "arn:aws:iam::123456789012:user/johndoe"
                                },
                                "Action": "sts:AssumeRole",
                                "Condition": {}
                            }
                        ]
                    }
                }
            ]
        }
    ]
}