diff --git a/Software/Development/System/Linux/User/Linux_常用目录_文件集合.md b/Software/Development/System/Linux/User/Linux_常用目录_文件集合.md
index c6bd5c2..c06ce95 100644
--- a/Software/Development/System/Linux/User/Linux_常用目录_文件集合.md
+++ b/Software/Development/System/Linux/User/Linux_常用目录_文件集合.md
@@ -5,6 +5,7 @@
 | Directory                                           | Description        |
 |-----------------------------------------------------|--------------------|
 | /etc/alternatives                                   | 配置选择 |
+| /etc/environment                                    | 系统环境变量配置 |
 | /etc/systemd/system                                 | Systemd 服务配置目录 |
 | /etc/NetworkManager/system-connections              | NetworkManager 的连接配置文件目录 |
 | /lib/firmware                                       | 设备固件目录，该目录下保存着设备运行时所需的固件程序 |