From the course: Ubuntu Linux: Essential Commands and System Administration
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Updating software
From the course: Ubuntu Linux: Essential Commands and System Administration
Updating software
We can run all kinds of software on an Ubuntu system, and often that software is updated to add features or to fix bugs. And we can install new software on our system as well. Here on Ubuntu, we'll do that with APT, the Advanced Package Tool, which offers an easy-to-use interface to the Debian package manager, dpkg. APT acts as a front-end to a collection of tools that have more specific roles, including apt-cache and apt-get. Occasionally, we need to use these tools directly, but for most tasks, using APT is sufficient. The package management system can either search repositories of software for updates and new tools, or it can install already downloaded package files, allowing you to patch offline machines or to deploy packages across many machines and install things locally, rather than having many machines download the same update from the online repositories. The package manager maintains a cached copy of a list of the packages available in the repositories that it knows about…
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