https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-new?tabs=netcore22


dotnet new sln -n csharp_test
dotnet new console -n csharp_test
dotnet sln csharp_test.sln add csharp_test

dotnet new classlib -n whatever

https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-add-reference

dotnet add app/app.csproj reference lib/lib.csproj