execute shell command from html button node js

  1. Create a new Node.js project and navigate into the project directory.
  2. Install the express and child_process modules using npm.
  3. Create a new file (e.g., app.js) and require the necessary modules at the beginning.
  4. Initialize an Express app and set up a route to handle the button click from the HTML page.
  5. Define a function to execute the shell command using the child_process module's exec function when the button is clicked.
  6. In the function, use the exec function to run the desired shell command, such as ls or echo "Hello".
  7. Use res.send to send a response back to the HTML page, indicating the command has been executed.
  8. Start the Express app and listen on a specific port.