What this snippet does
system df shows what is using space before prune removes unused images, networks and volumes.
Expected output
Total reclaimed space: 8.921GB
Why practise typing this
Typing cli: images code builds muscle memory for the symbols and indentation Docker uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More Docker practice
- Tagging an imageCLI: Images · beginner
- Pushing to a registryCLI: Images · intermediate
- Pulling a specific tagCLI: Images · beginner
- Sorting images by sizeCLI: Images · beginner
- Exporting an image to a tarballCLI: Images · advanced
- Prune removes more than expectedCLI: Images · intermediate