What this snippet does
A destination ending in a slash is treated as a directory and the file keeps its name.
Expected output
Successfully built 2f8a4c1d9e63
Why practise typing this
Typing copy & add 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
- Copying a directory's contentsCOPY & ADD · intermediate
- Copy with ownershipCOPY & ADD · intermediate
- Copy from another imageCOPY & ADD · intermediate
- ADD unpacks archivesCOPY & ADD · intermediate
- ADD with a remote URLCOPY & ADD · intermediate
- Copying with a wildcardCOPY & ADD · intermediate