Small gruntfile.js example on copying files to another server via mapped Windows drive. https://npmjs.org/package/grunt-contrib-copy

gruntfile.js

module.exports = function(grunt) {

    // main config
    grunt.initConfig({
        copy: {
            main: {
                files: [
                    {src: ['css/main.css'], dest: 'Z:/www/css/main.css', filter: 'isFile'},
                    {src: ['js/main.js'], dest: 'Z:/www/js/main.js', filter: 'isFile'}
                ]
            }
        },
        watch: {
            files: ['css/main.css', 'js/main.js'],
            tasks: ['copy']
        }
    });

    // laod the tasks
    grunt.loadNpmTasks('grunt-contrib-copy');
    grunt.loadNpmTasks('grunt-contrib-watch');

    // run the task
    grunt.registerTask('default', ['copy', 'watch']);
};

doesn't work bro...