October 1999
Beginner to intermediate
360 pages
10h 18m
English
Content preview from Learning Debian GNU/Linux
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Appendix C. The Debian Package Management Utilities
This appendix introduces you to Debian’s package management facilities, which help you manage software applications. Suppose, for example, that after installing Linux, you discover you need an application that you omitted; you can find the missing application’s package and use the package management facilities to quickly and easily install the application. Similarly, when a new version of an application becomes available, the package management facilities helps you upgrade painlessly, by preserving the application’s configuration files. The package management facilities also let you query the status of your system, helping you determine whether important files have been deleted.
Packages
A Debian package (or more simply, a package or a deb) is a file that contains files necessary to install an application or software unit. Debian packages are generally named using a convention that lets you determine the name of the package, the version of the software, and the release number of the package. Figure 3-1 shows how the components of a package name are arranged.
Figure C-1. The structure of a package name
The important virtue of packages is that they contain meta-information; that is, information about their contents. For example, each package contains a list of other packages needed for correct operation. Similarly, each package ...
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