npm-cli.js is a command-line tool that makes it easy to use the Node.js Package Manager (npm) from the command line. It provides a set of convenient commands for managing npm packages, as well as some useful features like generating sample code and creating test directories. Here are some of the most commonly used commands in npm-cli.js:

• npm install: Installs a new npm package into the current working directory.
• npm update: Updates the npm package installed in the current working directory with the latest version.
• npm ls: Lists all installed npm packages.
• npm search: Searches for packages by name or keyword.
• npm uninstall: Uninstalls a npm package.
• npm install --save <package-name>: Installs a package and saves it as a dependency in the current working directory.
• npm run <command>: Executes the specified command, which is typically a script written in JavaScript.

To use npm-cli.js, you'll need to install it first by running npm install npm-cli.js in your terminal or command prompt. Then, you can use the commands in the following example: ```python

npm install ```

This will install the latest version of the express package as a dependency in the current working directory. You can then use the express command in your project to create a new web server: ```python

npm run dev ```

This will start the development server and open a web browser to access the server at http://localhost:3000. You can then create new routes and templates using JavaScript and HTML, and run your server using the npm run serve command. I hope this helps! Let me know if you have any questions.