ACL

Use acl to get or set an object's canned ACL without uploading a new file.

Example, set an object to private:

s3m acl backup/backups/file.dat --acl private

Retrieve the current ACL:

s3m acl backup/backups/file.dat | xmllint --format -

xmllint is only used here to pretty-print the response.

During upload, you can also set a canned ACL with -a/--acl:

s3m /path/to/file backup/backups/file.dat --acl public-read