Fix ACL of all objects in one S3 bucket

Question

I have 15,000 files in S3 and they have wrong ACL permissions. The owner of the objects is an external AWS account. I'm looking for a way to change this as quickly as possible. I ran antoligy/s3-recursive-acl: A tool for bulk-updating ACL in Amazon S3 but when I run it I get this:

s3-recursive-acl.go: command not found

When I use sudo:

sudo: ./s3-recursive-acl.go: command not found

when I do install go:

go install s3-recursive-acl.go
s3-recursive-acl.go:9:2: cannot find package "github.com/aws/aws-sdk-go/aws" in any of:
        /usr/local/go/src/github.com/aws/aws-sdk-go/aws (from $GOROOT)
        /home/souad/go/src/github.com/aws/aws-sdk-go/aws (from $GOPATH)
s3-recursive-acl.go:10:2: cannot find package "github.com/aws/aws-sdk-go/aws/session" in any of:
        /usr/local/go/src/github.com/aws/aws-sdk-go/aws/session (from $GOROOT)
        /home/souad/go/src/github.com/aws/aws-sdk-go/aws/session (from $GOPATH)
s3-recursive-acl.go:11:2: cannot find package "github.com/aws/aws-sdk-go/service/s3" in any of:
        /usr/local/go/src/github.com/aws/aws-sdk-go/service/s3 (from $GOROOT)
        /home/souad/go/src/github.com/aws/aws-sdk-go/service/s3 (from $GOPATH)

Please any ideas because I've pretty much tried everything.

Yes I have used the python script mentioned in there but it is not very efficient — Souad, Oct 23 '19 at 08:51
the awscli command is for one single file only. I have thousands of files — Souad, Oct 23 '19 at 08:55
in my answer, I point to other thread which explains how to use other aws CLI commands in order to run the ACL command recursively. — Amit Baranes, Oct 23 '19 at 08:56
yeah the problem of using aws cp is that it copies a new version of the file it doesn't just change the object acl — Souad, Oct 23 '19 at 09:03
@Souad It is not possible to change the ACL on an object. However, if the object is copied to itself, the ACL can be changed during the copy. This an be done as a [bulk update](https://stackoverflow.com/a/46577516/174777). — John Rotenstein, Oct 24 '19 at 03:53

Fix ACL of all objects in one S3 bucket

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