diff --git a/script/tools/safe_sshcmd.sh b/script/tools/safe_sshcmd.sh
index beb5cc73d42f37c270649e2242486c42de3d1a80..b1e6f6f7dfdf0cc0fa604fb0dd0d1e38f95d2b33 100644
--- a/script/tools/safe_sshcmd.sh
+++ b/script/tools/safe_sshcmd.sh
@@ -34,7 +34,7 @@ do
         esac
 done
 
-
+// test scan
 if [ "x${execcmd}" = "x" -o "x${machineip}" = "x"  ];then
         usage
         exit 1