From 9b37c37bf23dfda241f071256577134160b58ae9 Mon Sep 17 00:00:00 2001
From: teasiu <teasiu@qq.com>
Date: Mon, 26 Sep 2022 17:40:02 +0800
Subject: [PATCH] update

---
 docs/tutorial-extras/8-crontab.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/tutorial-extras/8-crontab.md b/docs/tutorial-extras/8-crontab.md
index b2d4baa..7bb7137 100644
--- a/docs/tutorial-extras/8-crontab.md
+++ b/docs/tutorial-extras/8-crontab.md
@@ -31,3 +31,7 @@ crontab -l
 ```bash
 0 */1 * * * systemctl restart smbd
 ```
+
+## 学习教材
+
+[](https://www.runoob.com/w3cnote/linux-crontab-tasks.html)