diff --git a/01-read-file/index.js b/01-read-file/index.js
index e69de29bb..001f6d272 100644
--- a/01-read-file/index.js
+++ b/01-read-file/index.js
@@ -0,0 +1,9 @@
+const fs = require('fs');
+
+fs.readFile('./text.txt', 'utf8', (err, data) => {
+  if (err) {
+    console.error(err);
+  } else {
+    console.log(data);
+  }
+});
diff --git a/02-write-file/index.js b/02-write-file/index.js
index e69de29bb..0c7467103 100644
--- a/02-write-file/index.js
+++ b/02-write-file/index.js
@@ -0,0 +1,18 @@
+const fs = require('fs');
+const readline = require('readline');
+
+console.log('Привет! Введи текст для записи в файл:');
+
+const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout
+});
+
+rl.on('line', (text) => {
+    fs.writeFile('text.txt', text, (err) => {
+        if (err) throw err;
+
+        console.log(`Текст "${text}" успешно записан в файл text.txt`);
+        rl.close();
+    });
+});
diff --git a/03-files-in-folder/index.js b/03-files-in-folder/index.js
index e69de29bb..3b2b0462c 100644
--- a/03-files-in-folder/index.js
+++ b/03-files-in-folder/index.js
@@ -0,0 +1,13 @@
+const fs = require('fs');
+
+const folderPath = './03-files-in-folder/secret-folder';
+
+fs.readdir(folderPath, (err, files) => {
+  if (err) {
+    console.error('Error reading directory:', err);
+    return;
+  }
+
+  console.log(`Files in directory ${folderPath}:`);
+  files.forEach(file => console.log(file));
+});
diff --git a/04-copy-directory/index.js b/04-copy-directory/index.js
index 8b1378917..a2c9d1fac 100644
--- a/04-copy-directory/index.js
+++ b/04-copy-directory/index.js
@@ -1 +1,23 @@
+const fs = require('fs');
 
+function copyDir(sourceDir, targetDir) {
+  if (!fs.existsSync(sourceDir)) {
+    throw new Error(`Source directory "${sourceDir}" does not exist`);
+  }
+  if (!fs.existsSync(targetDir)) {
+    fs.mkdirSync(targetDir);
+  }
+  const files = fs.readdirSync(sourceDir);
+  files.forEach((file) => {
+    const sourcePath = `${sourceDir}/${file}`;
+    const targetPath = `${targetDir}/${file}`;
+    const stat = fs.statSync(sourcePath);
+    if (stat.isDirectory()) {
+      copyDir(sourcePath, targetPath);
+    } else {
+      fs.copyFileSync(sourcePath, targetPath);
+    }
+  });
+}
+
+copyDir('./files', './files-copy');
diff --git a/05-merge-styles/index.js b/05-merge-styles/index.js
index e69de29bb..2bffc8f74 100644
--- a/05-merge-styles/index.js
+++ b/05-merge-styles/index.js
@@ -0,0 +1,21 @@
+const fs = require('fs');
+const concat = require('concat');
+
+const stylesFolderPath = './styles';
+const outputFilePath = './project-dist/bundle.css';
+
+fs.readdir(stylesFolderPath, (err, files) => {
+  if (err) {
+    throw err;
+  }
+
+  const fileContents = files.map((fileName) => {
+    return fs.readFileSync(`${stylesFolderPath}/${fileName}`, 'utf-8');
+  });
+
+  const concatenatedContents = concat(fileContents);
+
+  fs.writeFileSync(outputFilePath, concatenatedContents, 'utf-8');
+
+  console.log('Styles merged successfully');
+});