Para instalar o Angular é necessário o Node.JS se não tiver instalado instale.

Instalar o nodejs

curl -fsSL https://deb.nodesource.com/setup_19.x | bash - 
sudo apt-get install -y nodejs

Instale os compiladores

sudo apt install -y build-essential 

Instalar o Angular CLI

sudo npm install -g @angular/cli

cd /var/www/html/
sudo ng new dir-app

Rodar o servidor localhost:

ng serve

Habilitar Firewall

sudo ufw allow 4200/tcp
sudo ufw reload

Acesse no navegador

[http://localhost:4200/]

READMORE:

• [https://angular.io/cli]
• [https://stackoverflow.com/questions/tagged/angular]