Section: Maintenance Commands (8)
Updated: May 4, 2009
unattended-upgrade - automatic installation of security (and other) upgrades
This program can download and install security upgrades automatically
and unattended, taking care to only install packages from the
configured APT source, and checking for dpkg prompts about
configuration file changes. All output is logged to
This script is the backend for the APT::Periodic::Unattended-Upgrade
option and designed to be run from cron (e.g. via /etc/cron.daily/apt).
unattended-upgrade accepts the following options:
- -h, --help
- -d, --debug
extra debug output into /var/log/unattended-upgrades.log
Just simulate installing updates, do not actually do it
The configuration is done via the apt configuration mechanism. The
default configuration file can be found at
unattended-upgrade is written by Michael Vogt <firstname.lastname@example.org
This manual page was originally written by Michael Vogt <email@example.com>
Copyright (C) 2005-2009 Canonical
There is NO warranty.
You may redistribute this software under the terms of the GNU
General Public License. For more information about these matters, see
the files named COPYING.