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this is a stub for this and #1800158: Entity Translation Upgrade, drush extension..
This does not work, for a reason or another.
Tricking forms could be painful. Let's hope someone could jump into this.
This is really a stub, it uses the form API upon which ET admin is built.
So these drush commands correctly register batches, but I don't know the right way to trigger them, either automatically or manually from drush. Neither I know how to grab the output continuously in order to give a feedback about the running process.
the patch needs love from someone who knows how to trigger batches from drush.
Triggering batches from Drush is pretty straightforward - just set your batch as usual (via the form, or directly based on command args), then call drush_backend_batch_process(); which will process it in batches, using a separate process for each (even on the CLI, memory can be an issue with long running processes).
For details see:https://drupal.org/node/873132 and http://drupalcontrib.org/api/drupal/contributions%21drush%21includes%21b...
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