What is the difference of running `scala` and `sbt console`?

Question

What is the difference of running the scala shell in these different ways?

Answer 1

If you call scala, you will get whatever scala version is installed on the path of your operating system.

If you call sbt console, you get the scala version configured in the sbt build (build.sbt) with all libraries that are used in the build already on the classpath.

See this answer for details.