unattended-upgrade(8)					      System Manager's Manual					     unattended-upgrade(8)

NAME

       unattended-upgrade - automatic installation of security (and other) upgrades

SYNOPSIS

       unattended-upgrade [options]

DESCRIPTION

       This program can download and install security upgrades automatically and unattended, taking care to only install packages from the config-
       ured APT source, and checking for dpkg prompts about configuration file changes. All output is logged to /var/log/unattended-upgrades.log.

       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).

OPTIONS

       unattended-upgrade accepts the following options:

       -h, --help
	      help output

       -d, --debug
	      extra debug output into /var/log/unattended-upgrades.log

       --dry-run
	      Just simulate installing updates, do not actually do it

CONFIGURATION

       The  configuration  is done via the apt configuration mechanism. The default configuration file can be found at /etc/apt/apt.conf.d/50unat-
       tended-upgrades

AUTHORS

       unattended-upgrade is written by Michael Vogt <mvo@ubuntu.com>

       This manual page was originally written by Michael Vogt <mvo@ubuntu.com>

COPYRIGHT

       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.

								    May 4, 2009 					     unattended-upgrade(8)