Command
docker imagesExplanation
docker images lists locally cached images. It includes repositories, tags, and IDs for image management. Use filters like --filter dangling=true to target untagged images for cleanup or inspection.
Common Use Cases
- •Check available images before running containers
- •Identify old or unused images
- •Audit disk space usage by images
Best Practices
- ✓Regularly prune unused images to save disk space
- ✓Use filters to target specific image groups
Common Mistakes to Avoid
- ⚠Assuming docker images lists remote images — it only shows local ones
Troubleshooting
Problem: Expected image missing from list
Solution: Check if image exists in remote registry or was removed with docker image prune.
Examples
List all images
docker imagesList only dangling images
docker images --filter dangling=true