Node File System (fs)

gistfile1.js

// File I/O is provided by simple wrappers around standard POSIX functions. To use this module do require('fs'). All the methods have asynchronous and synchronous forms.

// Watch for changes on filename. The callback listener will be called each time the file is accessed.                                                         
fs.watch('myfile.txt', function (event, filename) {
    // fs.readFile asynchronously reads the entire contents of a file.                                                                                         
    fs.readFile(file, {encoding:'utf8'}, function ( err, data ) {
        if (err) throw err;
        console.log(data);
    });
});


// write out our file                                                                                                                                          
// . . . and see what changes                                                                                                                                  
fs.writeFile(file, "Hello NodeDC!");
setTimeout( function() {
    fs.writeFile(file, "Hello NodeDC!");
}, 1000);