diff --git a/lesson-1/cat.js b/lesson-1/cat.js
index e69de29..af47edb 100644
--- a/lesson-1/cat.js
+++ b/lesson-1/cat.js
@@ -0,0 +1,10 @@
+const fs = require("fs");
+const filepath = process.cwd() + "/" + process.argv[2];
+
+fs.readFile(filepath, (error, data) => {
+  if (error) {
+    process.stdout.write("error!!!");
+  } else {
+    process.stdout.write(data);
+  }
+});
diff --git a/lesson-1/ls.js b/lesson-1/ls.js
index e69de29..40a3df5 100644
--- a/lesson-1/ls.js
+++ b/lesson-1/ls.js
@@ -0,0 +1,10 @@
+const fs = require("fs");
+
+const filePath = process.cwd() + "/" + process.argv[2];
+fs.readdir(filePath, (error, file) => {
+  if (error) {
+    console.log("error");
+  } else {
+    file.forEach(ele => process.stdout.write(ele + " "));
+  }
+});