diff --git a/src/app.js b/src/app.js
index ad9a93a..9cce4d1 100644
--- a/src/app.js
+++ b/src/app.js
@@ -1 +1,39 @@
 'use strict';
+
+const fs = require('node:fs');
+// const path = require('node:path');
+
+const [source, destination] = process.argv.slice(2);
+
+const copyFile = (copyFrom, copyTo) => {
+  try {
+    fs.existsSync(copyFrom);
+  } catch (error) {
+    // eslint-disable-next-line
+    console.error(
+      `Error: Source file does not exist: ${copyFrom}\n${error.message}`,
+    );
+  }
+
+  if (copyFrom === copyTo) {
+    return;
+  }
+
+  try {
+    const fileData = fs.readFileSync(copyFrom, 'utf8');
+
+    try {
+      fs.writeFileSync(copyTo, fileData, 'utf8');
+    } catch (error) {
+      // eslint-disable-next-line
+      console.error(`Error writing file: ${copyTo}\n${error.message}`);
+    }
+  } catch (error) {
+    // eslint-disable-next-line
+    console.error(`Error reading file: ${copyFrom}\n${error.message}`);
+  }
+};
+
+copyFile(source, destination);
+
+module.exports = { copyFile };