how to remove a PPA cleanly?

[Alin-Andrei]

> I have been testing few things by adding PPA and the system has become
> unstable now.
> Is there any simple way to completely remove the installed software
> and its new dependency added via the PPA?
>
> My aim is to restore the dependent files version to the old ubuntu
> default version.



It sounds like you want PPA Purge:
http://www.webupd8.org/2009/12/remove-ppa-repositories-via-command.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20100222/26e3fc9b/attachment.html>