Read File From Node script

app.js

var fs = require('fs');
//var filename = '';
var prompt = require('prompt');

// make a simple validation for filename
var filename = {
	properties: {
		filename: {
			patturn: /^[a-zA-Z\s\-]+./,
			message: 'Filename',
			required:true
		}
	}
};

function readmyfile(filename) {
	// here i simply read the file
	fs.readFile(filename, 'utf8', function(err, result){
		
		// if any error comes in in reading file
		if (err) {
			console.log('file error');
		} else {
			console.log("\n" + result);
			
			/* now i have that reading data in result variable i simply split that in to array
			  so bacically it just convert that data in to array from here this optional code i just experiment*/
			
			var wordsarray = result.split('');

			// i need to stringify that array to make it writable in to file
			var perfectarray = JSON.stringify(wordsarray);

			// now simply write that array into file simple?
			fs.writeFile('new.txt', perfectarray, 'utf8', function(err, result) {
			  	if (err) {
			  		console.log('this is file error');
			  	}	
			  	console.log('Success');
			});
		}
	});
}

prompt.start();

prompt.get(filename, function(err, result){
	readmyfile(result.filename);
});

its almost like cat command in linux just read the file