diff --git a/src/app.js b/src/app.js
index ad9a93a..00282c1 100644
--- a/src/app.js
+++ b/src/app.js
@@ -1 +1,38 @@
+/* eslint-disable no-console */
 'use strict';
+
+const { cp, stat } = require('fs/promises');
+
+async function copyFile() {
+  const [, , source, dest] = process.argv;
+
+  if (!source || !dest) {
+    console.error('Please provide both source and destination paths.');
+    process.exit(1);
+  }
+
+  if (source === dest) {
+    process.exit(0);
+  }
+
+  try {
+    const stats = await stat(source);
+
+    if (stats.isDirectory()) {
+      console.error('Source path is a directory, not a file.');
+      process.exit(1);
+    }
+
+    await cp(source, dest);
+  } catch (error) {
+    if (error.code === 'ENOENT') {
+      console.error('Source file does not exist.');
+    } else {
+      console.error(error.message);
+    }
+
+    process.exit(1);
+  }
+}
+
+copyFile();