I have completed the describe instance feature and the subscription features for the CLI. I have pushed the changes as r58.
The describe feature is implemented as an extension to the
This feature adds 3 new usages for the
./mmclient show action, apart
./mmclient show user email@example.com  ./mmclient show list firstname.lastname@example.org  ./mmclient show domain domain.org 
The subscription features are built as mentioned in my previous mail
./mmclient subscribe user email@example.com firstname.lastname@example.org --list
email@example.com ./mmclient unsubscribe user firstname.lastname@example.org email@example.com --list firstname.lastname@example.org
The commands support usage with either a single user or multiple users.
 http://bazaar.launchpad.net/%7Erajeevs1992/mailman.client/mailmancli/revisio...  https://gist.github.com/rajeevs1992/3ca077fd7d1a5a1d5729  https://gist.github.com/rajeevs1992/15f69f5bfdbda52c4e36  https://gist.github.com/rajeevs1992/49fbe250ab9e1f254c11