Today, I use sdkman 5.1.3+69 to install gradle, when download almost 50% it suddenly stop without any information. Then no matter what command I typed, it always hint is not available while offline even if I enable the offline.
So I want to uninstall the sdkman, but I found nothing in doc.
Was that 50% download of Gradle? In that case it sounds like your internet went down.
Uninstalling sdkman is not the right solution here, but if you _really_ wanted to, simply rm -rf ~/.sdkman.
In future, please consider using our Gitter user-issues account for usage questions before opening an issue on github.