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Installing .NET Core 2
Run the .NET Core SDK package to launch the installer, then follow the wizard:
You should now be able to open a terminal and type dotnet to use command-line tooling. For example, type dotnet --version to see which edition of .NET Core you are using.
You can use the default shell that comes with the macOS Terminal, or you can use an alternative, such as the Zsh shell. You can manage this with the Oh My Zsh project, which also supports Linux.