diff --git "a/docs/\345\221\275\344\273\244\350\241\214/\346\235\203\351\231\220.md" "b/docs/\345\221\275\344\273\244\350\241\214/\346\235\203\351\231\220.md"
index c4cdd4a..a939137 100644
--- "a/docs/\345\221\275\344\273\244\350\241\214/\346\235\203\351\231\220.md"
+++ "b/docs/\345\221\275\344\273\244\350\241\214/\346\235\203\351\231\220.md"
@@ -540,4 +540,6 @@ DAC安全模型的核心内容是: 进程理论上所拥有的权限和执行它
 [^6]: useradd命令_Linux useradd 命令用法详解：创建的新的系统用户. (n.d.). Retrieved June 12, 2024, from https://man.niaoge.com/useradd
 [^7]: Linux userdel命令 | 菜鸟教程. (n.d.). Retrieved June 12, 2024, from https://www.runoob.com/linux/linux-comm-userdel.html
 [^8]: Linux usermod命令 | 菜鸟教程. (n.d.). Retrieved June 12, 2024, from https://www.runoob.com/linux/linux-comm-usermod.html
-[^9]: Linux groupadd 命令 | 菜鸟教程. (n.d.). Retrieved June 12, 2024, from https://www.runoob.com/linux/linux-comm-groupadd.html
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+[^9]: Linux groupadd 命令 | 菜鸟教程. (n.d.). Retrieved June 12, 2024, from https://www.runoob.com/linux/linux-comm-groupadd.html
+[^10]: Linux groupdel命令 | 菜鸟教程. (n.d.). Retrieved June 12, 2024, from https://www.runoob.com/linux/linux-comm-groupdel.html
+[^11]: Linux groupmod命令 | 菜鸟教程. (n.d.). Retrieved June 12, 2024, from https://www.runoob.com/linux/linux-comm-groupmod.html
\ No newline at end of file