# USE1.4.3-B Spack

# Background

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.

# Aim
  * To be able to use the spack command to load software.

# Outcomes
  * 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
  * [[skill-tree:use:1:4:3:i]]