For an OS independent solution, use copyfiles
npm install copyfiles --save-dev
Then add a script to package.json
"scripts": {
"html": "copyfiles -u 1 app/**/*.html app/**/*.css dist/"
}
Now npm run html should copy all css and html files from the app/ folder to dist/app/
EDIT: I’d like to amend my answer to point out angular-cli. This command line tooling utility is supported by the angular team and makes bundling a breeze (ng build –prod), among other things.