copy cont:path path2
    will copy all files prefixed with path, as path2path
copy cont:path cont2:
    will copy all files prefixed with path to container cont2
copy cont:path [cont2:]path2 --exact-match
    will copy at most one object as a new object named path2
copy cont:path [cont2:]path2 --replace
    will copy all objs prefixed with path, replacing prefix with path2