CODEWITHSUNDEEP
amazon-web-servicesamazon-s3command-line-interface
Belkodil
Belkodil

Reputation: 101

How to change file upload date in Amazon S3 using AWS CLI

I need to move some files (thousands) to Amazon S3 bucket, from where they will be displayed to the end-user by another application (instead of the current one).

Problem is, that these files have creation/upload date now (dates very between 2012 and 2017, when they were uploaded to current application), and when I move them they all start to be of the same date. That is a problem because when you look at the files in the new application, you don't understand the time hierarchy which is sometimes very important.

Is there any way I can modify upload date of a file(s) in S3?

Upvotes: 10

Views: 13917

Answers (3)

Anatol Bivol
Anatol Bivol

Reputation: 1008

You can just copy over the same object and the timestamp will update. This technique is also used to prolong the expire of an object in a bucket with a lifecycle rule.

Upvotes: 3

Hola Soy Edu Feliz Navidad
Hola Soy Edu Feliz Navidad

Reputation: 7092

What I did was renaming the file to something else and then renaming it again to its original name. As you cannot rename directly, you have to copy the file to a new name, and then copy it back to its original name. (and delete the auxiliary file, of course) It is not optimal, but that's the solution when using AWS client. I hope one day AWS will have all function the FTP used to have.

Upvotes: 1

John Rotenstein
John Rotenstein

Reputation: 269921

The Last Modification Date is generated by Amazon S3 and cannot be set via the API.

If dates and other information (eg user) are important to your application, you can store it as metadata on the object. Then, retrieve the metadata when displaying dates, user, etc.

Upvotes: 12

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