How to Install The Ionic Framework CLI to Build Mobile Apps

Ionic apps are created and developed primarily through the Ionic command-line utility. The Ionic CLI is the preferred method of installation, as it offers a wide range of dev tools and help options along the way. It is also the main tool through which to run the app and connect it to other services, such as Appflow.
Use our App Wizard to generate an Ionic project visually. Choose a template, custom colors, app icon, and JavaScript Framework to get building quicker.
Before proceeding, make sure your computer has Node.js installed. Refer to the environment setup guide to prepare your machine.
Install the Ionic CLI with npm:
If there was a previous installation of the Ionic CLI, it will need to be uninstalled due to a change in package name.
The -g option means install globally. When packages are installed globally, EACCES permission errors can occur. Consider setting up npm to operate globally without elevated permissions. Refer to Resolving Permission Errors for more information.
Create an Ionic app using one of the pre-made app templates, or a blank one to start fresh. The three most common starters are the blank starter, tabs starter, and sidemenu starter. Get started with the ionic start command:
To learn more about starting Ionic apps, refer to the Starting Guide.
The majority of Ionic app development can be spent right in the browser using the ionic serve command:
There are a number of other ways to run an app, it's recommended to start with this workflow. To develop and test apps on devices and emulators, refer to the Running an App Guide.