Functions
Package management systems are charged with the task of organizing all of the packages installed on a system. Typical functions of a package management system include:
- Verifying file checksums to ensure correct and complete packages;
- Verifying digital signatures to authenticate the origin of packages;
- Applying file archivers to manage encapsulated files;
- Upgrading software with latest versions, typically from a software repository;
- Grouping of packages by function to reduce user confusion;
- Managing dependencies to ensure a package is installed with all packages it requires. This resolved the problem known as Dependency Hell.
Some additional challenges are met by only a few package management systems.
Read more about this topic: Package Management System
Famous quotes containing the word functions:
“Let us stop being afraid. Of our own thoughts, our own minds. Of madness, our own or others’. Stop being afraid of the mind itself, its astonishing functions and fandangos, its complications and simplifications, the wonderful operation of its machinery—more wonderful because it is not machinery at all or predictable.”
—Kate Millett (b. 1934)
“The English masses are lovable: they are kind, decent, tolerant, practical and not stupid. The tragedy is that there are too many of them, and that they are aimless, having outgrown the servile functions for which they were encouraged to multiply. One day these huge crowds will have to seize power because there will be nothing else for them to do, and yet they neither demand power nor are ready to make use of it; they will learn only to be bored in a new way.”
—Cyril Connolly (1903–1974)
“One of the most highly valued functions of used parents these days is to be the villains of their children’s lives, the people the child blames for any shortcomings or disappointments. But if your identity comes from your parents’ failings, then you remain forever a member of the child generation, stuck and unable to move on to an adulthood in which you identify yourself in terms of what you do, not what has been done to you.”
—Frank Pittman (20th century)