title: How do I grant bulk permissions on S3 bucket files?
body: <p>I have a custom AMI that failed half way through the upload using <code>ec2-upload-bundle</code> but the remaining items were uploaded via the AWS control panel. However, this means that about half of the bundled parts of the bucket are missing the "za-team" grantee which appears to be required for the AMI to launch successfully. How can I go about applying the relevant "Open/Download" permissions to the "za-team" in bulk to the files that are missing it in the bucket?</p>