diff --git a/blockchain/robot.sh b/blockchain/robot.sh
index efe6114..e982133 100755
--- a/blockchain/robot.sh
+++ b/blockchain/robot.sh
@@ -26,6 +26,4 @@ do
   php robot.php $BLOCK >> $DATA_PATH/block_list.txt
 done
 
-cat $DATA_PATH/block_list.txt
-
 rm -f $flag