diff --git a/src/app.js b/src/app.js
index ad9a93a..5456167 100644
--- a/src/app.js
+++ b/src/app.js
@@ -1 +1,16 @@
+/* eslint-disable no-console */
 'use strict';
+
+const fs = require('fs');
+
+const [source, destination] = process.argv.slice(2);
+
+try {
+  if (source === destination) {
+    process.exit(0);
+  }
+
+  fs.copyFileSync(source, destination);
+} catch (error) {
+  console.error(`Error: ${error.message}`);
+}