sbt:tldr:7c5ae

The command "sbt clean" is used when you are working with the Scala Build Tool (SBT) to clean the project.

When you build a project using SBT, it generates various files and directories like compiled classes, output artifacts, logs, etc. Over time, these files can accumulate and take up unnecessary space on your system.

Therefore, the "sbt clean" command helps you to remove all the generated files and directories, and bring your project back to its initial state. It cleans the "target" directory, which is the default output directory for compiled classes and artifacts. It also removes any logs or other files generated during the build process.

By running "sbt clean", you ensure that you are working with a clean and fresh project structure, which is particularly useful when you want to start a new build from scratch or if you are facing any issues related to left-over build artifacts.