rimonscloud@Cloudserver:~$ sudo ppa-purge -s http://download.owncloud.org/download/repositories/stable -p xUbuntu_15.10
Warning:  Required ppa-name argument was not specified
Usage: sudo ppa-purge [options] <ppa:ppaowner>[/ppaname]

ppa-purge will reset all packages from a PPA to the standard
versions released for your distribution.

Options:
	-p [ppaname]		PPA name to be disabled (default: ppa)
	-o [ppaowner]		PPA owner
	-s [host]		Repository server (default: ppa.launchpad.net)
	-d [distribution]	Override the default distribution choice.
	-y 			Pass -y --force-yes to apt-get or -y to aptitude
	-i			Reverse preference of apt-get upon aptitude.
	-h			Display this help text

Example usage commands:
	sudo ppa-purge -o xorg-edgers
	will remove https://launchpad.net/~xorg-edgers/+archive/ppa

	sudo ppa-purge -o sarvatt -p xorg-testing
	will remove https://launchpad.net/~sarvatt/+archive/xorg-testing

	sudo ppa-purge [ppa:]ubuntu-x-swat/x-updates
	will remove https://launchpad.net/~ubuntu-x-swat/+archive/x-updates

Notice: If ppa-purge fails for some reason and you wish to try again,
(For example: you left synaptic open while attempting to run it) simply
uncomment the PPA from your sources, run apt-get update and try again.