Testing for AWS credentials is a straightforward operation. Using get-caller-identity There is a single API call that will always work regardless of permissions: GetCallerIdentity 1aws sts get-caller-identityOutput: 1{ 2 "UserId": "AIDA...", 3 "Account": "123456789012", 4 "Arn": "arn:aws:iam::123456789012:user/thomas" 5}The Arn value depends on the type of credentials, but mostly includes the human-friendly name. In addition, checking the status is reliable: 0 for success, 255 for failure.
