diff --git a/shell.sh b/shell.sh
index f1b965c..2f57285 100644
--- a/shell.sh
+++ b/shell.sh
@@ -6,4 +6,6 @@ sudo useradd testuser
 echo "加了testuser用户"
 sudo usermod -aG testgroup testuser
 echo "将testuser加入到testgroup中"
+id testuser
+
 read
\ No newline at end of file