On Thu, 2013-12-12 at 16:10 +0100, Ralf Mardorf wrote: > sudo sh -c "apt-get update && apt-get dist-upgrade -y ; poweroff" sudo sh -c "apt-get update && apt-get dist-upgrade --dry-run ; apt-get dist-upgrade -y ; poweroff" -y without a dry run :S, OTOH, the OP want's to go to sleep, so the dry-run first doesn't improve something. It's simply a bad idea to automate an upgrade.