diff --git a/src/app.js b/src/app.js
index ad9a93a..cd01b55 100644
--- a/src/app.js
+++ b/src/app.js
@@ -1 +1,19 @@
 'use strict';
+
+const fs = require('fs');
+
+const copyFile = (src, dest) => {
+  if (src === dest || !src || !dest) {
+    throw new Error('Unable to copy file');
+  }
+
+  const stats = fs.statSync(src);
+
+  if (!stats.isFile()) {
+    return;
+  }
+
+  fs.copyFileSync(src, dest);
+};
+
+copyFile(...process.argv.slice(2));