Update labs/Shell.md

estebistec · estebistec · commit aa26d9254a0d · 2012-11-03T12:44:41.000-05:00
Need fs import for ls command.
diff --git a/labs/Shell.md b/labs/Shell.md
@@ -142,6 +142,8 @@ stdin.on('data', function (input) {
 To implement ls add a new property to our object named 'ls' like this:
 
 ```js
+var fs = require('fs');
+
 var commands = {
     'pwd': function () {
         console.log(process.cwd());
