How to get the md5sum of a file on Amazon's S3

Question

If I have existing files on Amazon\'s S3, what\'s the easiest way to get their md5sum without having to download the files?

Thanks

Answer 1

I found that s3cmd has a --list-md5 option that can be used with the ls command, e.g.

s3cmd ls --list-md5 s3://bucket_of_mine/

Hope this helps.