How to Undelete Files in Amazon S3

While S3 is a great storage platform, what happens if you accidentally delete some important files? Well, S3 has a mechanism to recover deleted files, and I’d like to go into that in this post.

First, make sure you have versioning enabled on your bucket. This can be done via the API, or via the UI in the “properties” tab for your bucket. Versioning saves every change to a file (including deletions) as a separate version of said object, with the most recent version taking precedence. In fact, a deletion is also a version! It is a zero-byte version which has a “DELETE” flag set. And the essence of recovering undeleted files simply involves removing the latest version with the “DELETE” flag.

This is what that would look like in the UI:

To undelete these files, we’ll use a script I created called, which can be found over on GitHub:

Continue reading “How to Undelete Files in Amazon S3”