NAME
unattended-upgrade – automatic installation of security (and other) upgradesSYNOPSIS
unattended-upgrade [options]DESCRIPTION
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 /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/50unattended-upgrades
Willie
Willie has over 15 years of experience in Linux system administration and DevOps. After managing infrastructure for startups and enterprises alike, he founded Command Linux to share the practical knowledge he wished he had when starting out. He oversees content strategy and contributes guides on server management, automation, and security.