Apt
From DWIKI
Debian/Ubuntu package manager
Unattended upgrades
Disable unattended upgrades
In /etc/apt/apt.conf.d/20auto-upgrades
APT::Periodic::Unattended-Upgrade "0";
HOWTO
Extract files from .deb
dpkg-deb
FAQ
Show version of packages before installing
apt-get -s install somepackage
or
apt install madison-lite apt-cache madison somepackage
or
apt-show packagename
have been kept back
Usually means you should run
apt dist-upgrade'
if that fails try
apt upgrade packagename
Unable to correct problems, you have held broken packages.
Try
dpkg --get-selections | grep hold
What packages depend on package
apt-cache rdepends --installed libc6-dev
Clear cache
apt-get clean
Could not handshake: The TLS connection was non-properly terminated.
try http instead of https
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead
fart a lot
Depends: but it is not going to be installed
First try
apt-get update && apt-get upgrade
E: Unable to correct problems, you have held broken packages.
Which services should be restarted?
That's from needrestart
Prevent restarting all services when installing a package
NEEDRESTART_MODE=i apt install somepackage
