There are two tools that are closely related to the .NET Core SDK:
dotnet
nuget
These tools are must-haves for .NET development: the first, dotnet, is what, NuGet ecosystem of libraries and installs, publishes, and otherwise manages sets of NuGet packages. This one is
dotnet always executes with the most recent .NET Core version available on the system. In Appendix 1, you will find a good description of this tool and its usages.