CENTRAL DE PPA's DO NODES.

DRIVERS AMD (só para versões anteriores ao ubuntu 16.04):

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install fglrx

DRIVERS NVIDIA:

sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update && sudo apt-get upgrade
sudo apt-get install nvidia-current

QBITTORRENT.

sudo add-apt-repository ppa:qbittorrent-team/qbittorrent-stable

KDENLIVE com todos os plugins

sudo add-apt-repository ppa:sunab/kdenlive-release
sudo apt-get update
sudo apt-get install kdenlive

To install MDM and MDM themes in Ubuntu:

sudo add-apt-repository ppa:noobslab/mint

sudo apt-get update

sudo apt-get install mdm mdm-themes

sudo dpkg-reconfigure lightdm

sudo halt

INSTALAR SMPLAYER

sudo add-apt-repository ppa:rvm/smplayer

sudo apt-get install smplayer smtube smplayer-themes smplayer-skins

INSTALAR YPPAMANAGER

sudo add-apt-repository ppa:webupd8team/y-ppa-manager

sudo apt-get install y-ppa-manager

TEMA E ICONES NOOBSLAB

sudo add-apt-repository ppa:noobslab/apps

sudo add-apt-repository ppa:noobslab/icons

sudo add-apt-repository ppa:noobslab/icons2

sudo add-apt-repository ppa:noobslab/themes

Icones numix

sudo apt-add-repository ppa:numix/ppa

sudo apt-get update

sudo apt-get install numix-icon-theme numix-icon-theme-circle

PPA PARA ATUALIZAR O LIBREOFFICE

sudo add-apt-repository ppa:libreoffice/ppa -y

sudo apt-get update

sudo apt-get install libreoffice libreoffice-gnome libreoffice-l10n-pt-br -y

Instalar o Ubuntu Tweak 0.8.7

sudo add-apt-repository ppa:tualatrix/ppa

sudo apt-get update

sudo apt-get install ubuntu-tweak

PPA DO GIMP.

sudo add-apt-repository ppa:otto-kesselgulasch/gimp-edge

sudo apt-get update

sudo apt-get upgrade
ou
sudo apt-get install gimp

OPENSHOT.

sudo add-apt-repository ppa:openshot.developers/ppa
sudo apt-get update

WINE.
sudo add-apt-repository ppa:ubuntu-wine/ppa

sudo apt-get update

PPA DO JAVA ORACLE.
sudo add-apt-repository ppa:webupd8team/java
sudo apt update
sudo apt install oracle-java8-installer

PPA TUXKART
sudo add-apt-repository ppa:stk/dev

sudo apt-get updatesudo apt-get install tuxkart

PPA VLC.

sudo add-apt-repository ppa:videolan/stable-daily

sudo apt-get update

sudo apt-get install vlc

PPA AUDACITY.
sudo add-apt-repository ppa:audacity-team/daily

sudo apt-get update



WINFF
sudo add-apt-repository ppa:paul-climbing/ppa
sudo apt-get update
sudo apt-get install winff
Extra:
Install the unstripped version of ffmpeg
sudo apt-get install libavcodec-extra-53

PARA REMOVER QUALQUER PPA ACIMA, FAÇA O SEGUINTE:
Adicione o --remove antes de ppa, como demonstrado no exemplo.

Ex:

sudo add-apt-repository ppa:otto-kesselgulasch/gimp-edge

sudo add-apt-repository --remove ppa:otto-kesselgulasch/gimp-edge

sudo apt-get update