Prerequisite

• Git
• Node.js 10.13.0 (LTS) or higher
• Yarn

How to instal Gatsby as a global tool

• If you haven't installed Yarn yet, execute the following command in a terminal:

$ sudo npm install -g yarn

Install gatsby-cli as a global tool

• Open a new terminal.
• Execute the following command to install gatsby-cli:

$ sudo yarn global add gatsby-cli

Create a simple website from Gatsby Starters

• Execute the following command in a terminal to create a new Gatsby website:

$ gatsby new my-gatsby-website https://github.com/gatsbyjs/gatsby-starter-blog

• Wait for a while until a command has finished.
• Then CD to the project folder.

$ cd my-gatsby-website

• Start the website in development mode by executing the following commands:

gatsby develop

• Open a browser and navigate to http://localhost:8000.
• You should find homepage and post details page as following images:

Gatsby Starter Blog - homepage

Gatsby Starter Blog - post details page

• You has just setup a Gatsby website successfully.
• You can also browse more Gatsby Starters from this link https://www.gatsbyjs.com/starters.