Editing Linux software management systems (section)

== Aptitude ==

[https://ubuntu.com/server/docs/package-management Ubuntu package management]

Installed packages on your computer may periodically have upgrades available from the package repositories (e.g., security updates). To upgrade your system, first update your package index and then perform the upgrade – as follows:

<pre>sudo apt update
sudo apt upgrade</pre>

Copied from [http://www.garfieldtech.com/blog/your-debian-aptitude Garfield Tech] for reference:

<pre>
aptitude update: Update the local cache of available packages (formerly apt-get update.
aptitude upgrade: Upgrade available packages (formerly apt-get upgrade).
aptitude dist-upgrade: Upgrade available packages even if it means removing stuff (formerly apt-get dist-upgrade).
aptitude install pkgname: Install package (formerly apt-get install).
aptitude remove pkgname: Uninstall package (formerly apt-get remove).
aptitude purge pkgname: Uninstall package and config files (formerly apt-get --purge remove).
aptitude search string: Search for a package with "string" in the name or description (formerly apt-cache search string).
aptitude show pkgname: Show detailed of a package (formerly apt-cache show pkgname).
aptitude clean: Delete downloaded package files (formerly apt-get clean).
aptitude autoclean: Delete only out-of-date package files but keep current ones (formerly apt-get autoclean).
aptitude hold pkgname: Fix a package at its current version and don't upgrade it automatically (formerly an obscure echo-to-file command). unhold to remove the hold.
</pre>