Final answer:
Docker system prune is a command that cleans up unused Docker resources, such as stopped containers, unused networks, and dangling images, to reclaim disk space and improve system performance.
Step-by-step explanation:
Docker system prune is a command used to clean up unused Docker resources. This command is particularly useful in managing the disk space used by Docker. When you run the prune command, Docker will remove all stopped containers, unused networks, dangling images, and build caches that are not used by any existing containers. This can help free up significant amounts of storage, which can improve system performance and prevent storage issues, especially on systems where Docker is used heavily.
Benefits of Using Docker System Prune
- Reclaims disk space by removing unnecessary Docker objects.
- Enhances system performance by eliminating clutter.
- Streamlines Docker environment by ensuring that only necessary resources are kept.
It's important to note that prune is a powerful operation and it should be used with caution, as it will remove objects that may be difficult to recover if they were not backed up elsewhere.