Upgrade

Upgrade debian

apt-get update && apt-get dist-upgrade && dist-upgrade && apt-get autoremove

(first update than upgrade, than upgrade again if something didn't happen well and autoremove teh packages which are not used)

old stable > to stable

nano /etc/apt/sources.list

(change the name of the distribution)

apt-get update && apt-get dist-upgrade && dist-upgrade && apt-get autoremove

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