diff --git a/ProcessFASTQ.ipynb b/ProcessFASTQ.ipynb
index 7fb7a8b39a791c5f06022bb2f3c8f883f826135c..f58862bb0b9790dbe20df6e9330026b01cdd5092 100644
--- a/ProcessFASTQ.ipynb
+++ b/ProcessFASTQ.ipynb
@@ -943,6 +943,20 @@
     "            "
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
+    "%%bash\n",
+    "source ./source\n",
+    "\n",
+    "head "
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},