What are child processes and how are they used?

Child processes are separate processes spawned by your Node.js app to run shell

commands or other programs, enabling parallel execution.

const { exec } = require('child_process');

exec('ls -la', (err, stdout, stderr) => {

if (err) console.error(err);

console.log(stdout);

});

Useful for running system commands or scripts without blocking your main app.