diff --git a/command/wc.md b/command/wc.md
index 169bc5dc77..c7241b37fb 100644
--- a/command/wc.md
+++ b/command/wc.md
@@ -65,4 +65,20 @@ expr $(ls -l | wc -l) - 1
 8
 ```
 
+统计当前目录下的所有文件行数及总计行数
+
+```shell
+[root@centos7 ~]# wc -l *
+      21 LICENSE
+     270 README.md
+wc: example: read: Is a directory
+     785 lerna-debug.log
+      25 lerna.json
+wc: node_modules: read: Is a directory
+   23603 package-lock.json
+      79 package.json
+       3 renovate.json
+   24786 total
+```
+
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