**Example 1: To modify a snapshot attribute** The following ``modify-snapshot-attribute`` example updates the ``createVolumePermission`` attribute for the specified snapshot, removing volume permissions for the specified user. :: aws ec2 modify-snapshot-attribute \ --snapshot-id snap-1234567890abcdef0 \ --attribute createVolumePermission \ --operation-type remove \ --user-ids 123456789012 **Example 2: To make a snapshot public** The following ``modify-snapshot-attribute`` example makes the specified snapshot public. :: aws ec2 modify-snapshot-attribute \ --snapshot-id snap-1234567890abcdef0 \ --attribute createVolumePermission \ --operation-type add \ --group-names all