const fs = require('fs');
const readStream = fs.createReadStream('input.txt');
const writeStream = fs.createWriteStream('output.txt');

// Pipe the readable stream to the writable stream
readStream.pipe(writeStream);

// You can also handle events for more control
readStream.on('data', chunk => {
console.log(Reading chunk: ${chunk.length} bytes);
});

writeStream.on('finish', () => {
console.log('Write operation finished!');
});