doc: Update lsof.md (#466)

查看指定端口的占用
jaywcjlove · Feb 10, 2023 · c2d0b9d · c2d0b9d
1 parent 29d9f98
commit c2d0b9d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/command/lsof.md b/command/lsof.md
@@ -156,5 +156,8 @@ lsof -i:9981 -P -t -sTCP:LISTEN
 ```shell
 lsof $filename
 ```
-
+查看端口占用
+```shell
+lsof -i:$port
+```