Angular CLI
Angular now has its own CLI, or command line interface, which will do most of the routine operations for you. To start using Angular, we have to install it. It requires Node 6.9.0 or higher as well as NPM 3 or higher. We are not going to cover their installation for your system, as it’s better to find up-to-date documentation for installation on your own. Once they are both installed, we are going to install Angular CLI by running the following:
npm install -g @angular/cli
ng serve
This command use for run program.