diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+node_modules
diff --git a/greet.js b/greet.js
new file mode 100755
index 0000000..75de9ef
--- /dev/null
+++ b/greet.js
@@ -0,0 +1,11 @@
+(function() {
+  exports = module.exports = {};
+  exports.greet = function(name) {
+    return 'Hello ' + name;
+  };
+
+  if (!module.parent) {
+    console.log(exports.greet(process.argv.slice(2)));
+  };
+
+})();
diff --git a/test/greet-test.js b/test/greet-test.js
new file mode 100644
index 0000000..a1140e6
--- /dev/null
+++ b/test/greet-test.js
@@ -0,0 +1,16 @@
+const chai = require('chai');
+const expect = chai.expect;
+const greeting = require('../greet.js');
+
+describe('Greeting test', () => {
+  it('should return a greeting with the name passed', () => {
+    expect(greeting.greet('Stefanie')).to.eql('Hello Stefanie');
+  })
+})
+
+describe('Greeting test via command line utility', () => {
+  it('should return a greeting with the name passed in the command line', () => {
+    process.argv = ['node', 'Users/Stefanie/cf/401/class-01/stefanie-hansen/greet.js', 'Stefanie'];
+    expect(greeting.greet(process.argv.slice(2))).to.eql('Hello Stefanie');
+  })
+})