diff --git a/README.md b/README.md
index bda8f19..7f67f8c 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,6 @@
 docker pull gitea.revservices.tw/parrotxray/hadoop-3.5.0:master
 
 docker run -d --name hadoop -p 9000:9000 -p 9870:9870 -p 8088:8088 -p 8042:8042 -p 19888:19888 gitea.revservices.tw/parrotxray/hadoop-3.5.0:master
+
+docker exec -it hadoop bash
 ```
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