Node.js Filesystem I/O Cloning a file using streams
Example
This program illustrates how one can copy a file using readable and writable streams using the createReadStream(), and createWriteStream() functions provided by the file system module.
//Require the file System module var fs = require('fs'); /* Create readable stream to file in current directory (__dirname) named 'node.txt' Use utf8 encoding Read the data in 16-kilobyte chunks */ var readable = fs.createReadStream(__dirname + '/node.txt', { encoding: 'utf8', highWaterMark: 16 * 1024 }); // create writable stream var writable = fs.createWriteStream(__dirname + '/nodeCopy.txt'); // Write each chunk of data to the writable stream readable.on('data', function(chunk) { writable.write(chunk); }); 
