unattended-upgrade(8)




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

NAME
       unattended-upgrade - automatic installation of security (and other) up-
       grades

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   operations   are   logged  to  /var/log/unattended-up-
       grades/unattended-upgrades.log and the package manager (dpkg) output is
       logged to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log

       This  script  is  the backend for the APT::Periodic::Unattended-Upgrade
       option and designed to be run periodically  by  APT's  systemd  service
       (apt-daily-upgrade.service)      or     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/unattended-
              upgrades.log

       --apt-debug
              detailed APT/LibAPT output for debugging

       -v, --verbose
              show verbose output

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

       --minimal-upgrade-steps
              perform  upgrade  in minimal steps (cancel with SIGINT). This is
              the default now.

       --no-minimal-upgrade-steps
              do not perform upgrade in minimal steps

CONFIGURATION
       The configuration is done via the apt configuration mechanism. The  de-
       fault  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.

                                 March 1, 2019           unattended-upgrade(8)

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