A command line interface in Angular is a tool launched from a Command Window (Terminal on Mac, or Command Prompt / PowerShell in Windows, or a Terminal Window in Visual Studio Code.
To install the Angular CLI, make sure you have NodeJS installed from https://nodejs.org/en/download/. Once installed, open a Command Window and type:
npm install -g @angular/cli
Using a the Angular CLI (Command Line Interface), you can use templates using Angular Schematics from different commands that will generate all or a part of an application. The Angular CLI from the Google team is the fastest way to generate the structure and dependencies of an Angular application. A schematic is a template-based code generator which includes instructions and logic to add or modify code from a code generation process.
The Ignite UI CLI from Infragistics goes a step further than the Angular CLI. While still based on templates using Angular Schematics, the Ignite UI CLI can add user interface components like Charts, Data Grids, and even entire application scenarios to a new or existing Angular application. You can even create your own custom templates based on your team or business need to accelerate app development and generate code in seconds.
To get started with step-by-step instructions using the Angular CLI and the Ignite UI CLI, click here: https://www.infragistics.com/products/ignite-ui-angular/angular/components/general/getting-started.