Install .NET Core SDK

Open the .NET Core (https://www.microsoft.com/net/core/preview) website to download the SDK as per your platform of choice. At the time of writing, .NET Core 2 Preview 2 was available.

For the Windows environment, .NET Core 2.0 SDK can be installed in two ways:

• .NET Core 2.0 and Visual Studio Tooling: During Visual Studio 2017 installation, an option is provided to install required tooling or .NET Core SDK can also install them. CLI gets installed along with this.
• .NET Core 2.0 SDK for Windows: This is the CLI mode of working with .NET Core applications.

To work with code, you can also install a text editor like Visual Studio Code. It's a lightweight code editor developed by Microsoft for Windows, Linux, and macOS. It can be downloaded from https://code.visualstudio.com/. Other text editors like Vim, Atom, and Sublime can also be used.

For a non-Windows machine, an appropriate .NET Core SDK (refer to this link for your OS of choice: https://www.microsoft.com/net/core/preview) and Visual Studio Code (recommended) for working with code should be installed.