Como instalar o OnlyOffice no Ubuntu, Debian e derivados!
sudo sh -c "echo 'deb http://download.onlyoffice.com/repo/debian squeeze main' >> /etc/apt/sources.list"
wget --quiet -O - http://download.onlyoffice.com/repo/onlyoffice.key | sudo apt-key add -
sudo apt update
sudo apt install onlyoffice-desktopeditors
desktopeditors