diff --git a/scripts/install.sh b/scripts/install.sh
index 49827b7e4..426888d1f 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -87,14 +87,14 @@ cd /www/server/mdserver-web && bash scripts/install/${OSNAME}.sh
 cd /www/server/mdserver-web && bash cli.sh start
 isStart=`ps -ef|grep 'gunicorn -c setting.py app:app' |grep -v grep|awk '{print $2}'`
 n=0
-while [[ ! -f /etc/rc.d/init.d/mw ]];
+while [ ! -f /etc/rc.d/init.d/mw ];
 do
     echo -e ".\c"
     sleep 1
     let n+=1
     if [ $n -gt 20 ];then
     	echo -e "start mw fail"
-        exit 1
+    	exit 1
     fi
 done
 
diff --git a/scripts/install_dev.sh b/scripts/install_dev.sh
index 3c3113c37..bdf44b80f 100755
--- a/scripts/install_dev.sh
+++ b/scripts/install_dev.sh
@@ -77,7 +77,7 @@ cd /www/server/mdserver-web && bash scripts/install/${OSNAME}.sh
 cd /www/server/mdserver-web && bash cli.sh start
 isStart=`ps -ef|grep 'gunicorn -c setting.py app:app' |grep -v grep|awk '{print $2}'`
 n=0
-while [[ ! -f /etc/rc.d/init.d/mw ]];
+while [ ! -f /etc/rc.d/init.d/mw ];
 do
     echo -e ".\c"
     sleep 1