I have successfully installed some packages using the command: sudo apt-get install packagename when I have known in advance that those packages are available. But how can I search for or get a l...

I'd like to output a list of all installed packages into a text file so that I can review it and bulk-install on another system. How would I do this?

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 …

The apt commands have been introduced to solve this problem. apt consists some of the most widely used features from apt-get, apt-cache and apt-config leaving aside obscure and seldom used features.

apt-cache's madison command attempts to mimic the output format and a subset of the functionality of the Debian archive management tool, madison. It displays available versions of a package in a …

For example, if apt-get fails to install something because of conflicting dependencies it will give up. However, aptitude might offer to go ahead, but uninstall a whole bunch of other packages in order to …

The graphical utility, update-manager, does not use apt-get directly; instead it works with a backend called aptdaemon. The standard abilities of update-manager are a mix of the upgrade and dist …

Done Package munin-memcached is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: …

Updating via apt would ignore update phasing. However, starting with Ubuntu 21.04, apt also uses phased updates, allowing phased updates to apply to all versions of Ubuntu, including Ubuntu Server …

sudo gpg -a --export <PUBKEY> | sudo apt-key add - sudo apt-get update Note that when you import a key like this using apt-key you are telling the system that you trust the key you're importing to sign …