diff --git a/.gitignore b/.gitignore
index ab646e2..6408a29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 **/*.sw?
+/node_modules
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..b97f1b3
--- /dev/null
+++ b/index.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var name = process.argv[2];
+var greet = require(__dirname + '/lib/greet');
+console.log(greet(name));
diff --git a/lib/greet.js b/lib/greet.js
new file mode 100644
index 0000000..2958986
--- /dev/null
+++ b/lib/greet.js
@@ -0,0 +1,5 @@
+'use strict';
+
+var greet = exports = module.exports = function(name) {
+  return 'Hello, ' + name + '.';
+};
diff --git a/test/greet_test.js b/test/greet_test.js
new file mode 100644
index 0000000..5bb72fe
--- /dev/null
+++ b/test/greet_test.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var expect = require('chai').expect;
+var greetings = require(__dirname + '/../lib/greet');
+
+describe('the greet function', function() {
+  it('should greet someone by name', function() {
+    var name = 'Rick';
+    expect(greetings(name)).to.eql('Hello, ' + name + '.');
+  });
+});