How to copy an OCI object from one region to another

Summary

I need help in using the oci os object copy command to copy an object from one region to another.

Content

I need to be able to copy all the OCI objects from a bucket in one region to a bucket in a another region.  As a first attempt, I have experimented with the "oci os object copy" command to try to copy an object from a bucket in a region to another bucket in the same region, but it fails with the following output:

OCI_cli.sh os object copy "com/oracle/emaas/emcbdas/emcbdas-platform-schema-core/cookbook/cookbook-emcs-emcbdas-schema/1.40.0-20190225103413/cookbook-emcs-emcbdas-schema-1.40.0-20190225103413.tgz" "1.41.0-20190306090214" "test_bucket"