12. Ubuntu Software Package Management and Updates
It is highly unlikely that a newly installed Ubuntu system will contain all of the software packages necessary to perform the tasks for which it is intended. Even once all the required software has been installed, it is almost certain that newer versions of many of those packages will be released during the lifespan of the system. In some cases, you will need to ensure that these latest package releases are installed on the system so that bugs and security vulnerabilities are fixed.
This chapter introduces the basic concepts of software management on Ubuntu, explains how these issues are addressed, introduces the concepts of repositories and software packages while exploring how to list, install and remove the software packages that make up a functioning Ubuntu system.
