# USE1.5.2 Spack

Spack is a package manager for Linux and macOS.
It allows the user to install software with all necessary dependency and to load relevant software.
Spack creates unique configurations for software.

## Learning Objectives
  * Describe the concept of configurations and used hashing.
  * Query information about packages:
    * list
    * info
    * find (also use -d to reveal their dependencies)
    * spec
  * Load/Unload software modules.
  * Describe the spec syntax to specify package configurations.

## Subskills