Home » How to install updates via command line?

How to install updates via command line?

Solutons:


Use this:

sudo apt update        # Fetches the list of available updates
sudo apt upgrade       # Installs some updates; does not remove packages
sudo apt full-upgrade  # Installs updates; may also remove some packages, if needed
sudo apt autoremove    # Removes any old packages that are no longer needed

Documentation about each apt option can be found in the the manpages for apt. These are also available by running man apt in your terminal.

Use of both upgrade and full-upgrade together is usually not needed, but it may help in some cases: see Debian documentation about Upgrades from Debian 9.

Execute all the commands by typing sudo once:

sudo -- sh -c 'apt-get update; apt-get upgrade -y; apt-get dist-upgrade -y; apt-get autoremove -y; apt-get autoclean -y'

or:

sudo -s -- <<EOF
apt-get update
apt-get upgrade -y
apt-get dist-upgrade -y
apt-get autoremove -y
apt-get autoclean -y
EOF

or even shorter in a for loop (thanks @dessert!):

sudo bash -c 'for i in update {,dist-}upgrade auto{remove,clean}; do apt-get $i -y; done'

See the package management with APT maintenance commands documentation for more details.

This is normal behavior.

The message you see on login has been appended to the server status ‘Message-Of-The-Day’, which is only updated each calendar day (or on server boot / startup). Have a look at the contents, using

cat /etc/motd

Still seeing the same updates available, after running

sudo apt-get update && sudo apt-get upgrade

is to be expected. If you then re-run this command you will only be prompted for any further updates if even further (newer) updates have been released.

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