The following command retrieves metadata for an object in a bucket named ``my-bucket``:: aws s3api head-object --bucket my-bucket --key index.html Output:: { "AcceptRanges": "bytes", "ContentType": "text/html", "LastModified": "Thu, 16 Apr 2015 18:19:14 GMT", "ContentLength": 77, "VersionId": "null", "ETag": "\"30a6ec7e1a9ad79c203d05a589c8b400\"", "Metadata": {} }