We begin our project by creating a root directory, project. Within this directory, we create an src directory to house our source files. Then, we initialize the project's package.json file, install the local grunt module, and finally, create an empty Gruntfile.js file. We can do this on the command line with:

$ mkdir project
$ cd project/
$ mkdir src
$ npm init
$ npm install --save-dev grunt
$ echo "module.exports = function(grunt) {};" > Gruntfile.js

As we might expect, the echo command echoes the provided string back to the command line (which is known as standard out or "stdout"). The arrow (>), however, redirects standard out to a file. So, this last line is just a short way of creating and initializing a file. It is not necessary to create these files and directories on the command line, as long as we end up with the following...