Aggiornare LibreOffice alla versione 4 su Debian 7

Per aggiornare LibreOffice 3 alla versione 4 su Debian 7 stable (Wheezy), aprire il terminale ed incollare:

echo 'deb http://ftp.debian.org/debian/ wheezy-backports main contrib non-free' >> /etc/apt/sources.list

echo 'deb-src http://ftp.debian.org/debian/ wheezy-backports main contrib non-free' >> /etc/apt/sources.list

oppure aggiungere manualmente al file /etc/apt/source.list le due righe:

deb http://ftp.debian.org/debian/ wheezy-backports main contrib non-free
deb-src http://ftp.debian.org/debian/ wheezy-backports main contrib non-free

Quindi dare un:

#apt-get update && apt-get -t wheezy-backports install libreoffice