Git push branch from one remote to another?

I have the following remotes set up:

$ git remote 
korg
rorg

And the following branches:

$ git branch -a
* (no branch)
  remotes/korg/gingerbread
  remotes/korg/gingerbread-release
  remotes/korg/honeycomb
  remotes/korg/honeycomb-mr1-release
  remotes/korg/master
  remotes/m/android-2.3.3_r1 -> refs/tags/android-2.3.3_r1a
  remotes/m/gingerbread -> korg/gingerbread

Now I wish to push all the remote branches from korg to the rorg remote. How do I do that?

Preferably without making a local branch for each first, if that is avoidable.

Solution

A quick test making some temporary repositories shows you can construct a refspec that can do this:

$ git push rorg origin/one:refs/heads/one
Counting objects: 5, done.
Writing objects: 100% (3/3), 240 bytes, done.
Total 3 (delta 0), reused 0 (delta 0)
Unpacking objects: 100% (3/3), done.
To /tmp/rorg
 * [new branch]      origin/one -> one

So origin/BRANCHNAME:refs/heads/BRANCHNAME

Checking in my rorg remote:

pat@host /tmp/rorg (BARE:master)
$ git graph --all
* 5750bca (HEAD, master) c
| * 13fd55a (one) b
|/
* 822e0de a