As exemplified previously, creating tasks is extremely simple. We provide a name and a function to grunt.registerTask and we're ready to execute. Tasks (as opposed to multitasks) are best suited to build processes that will only be performed once in a given build. A real world example of such a process might be to update a deployment log file, which we could run whenever we deploy, providing a simple history of deployments for future reference. This task might look like:

//Code example 01-deploy-log-task
var fs = require('fs');
module.exports = function(grunt) {

  grunt.registerTask('log-deploy', function() {
    var message = 'Deployment on ' + new Date();
    fs.appendFileSync('deploy.log', message + '\n');
    grunt.log.writeln('Appended "' + message + '"');
  });

};