diff --git a/scripts/install/ubuntu.sh b/scripts/install/ubuntu.sh
index 0f5c14306..16654c153 100644
--- a/scripts/install/ubuntu.sh
+++ b/scripts/install/ubuntu.sh
@@ -3,4 +3,11 @@ PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
 export PATH
 LANG=en_US.UTF-8
 
+
+mkdir -p /www/server
+mkdir -p /www/wwwroot
+mkdir -p /www/wwwlogs
+mkdir -p /www/backup/database
+mkdir -p /www/backup/site
+
 echo "ubuntu dev ..."
\ No newline at end of file
diff --git a/scripts/update.sh b/scripts/update.sh
index 87906c4a0..ef0081938 100755
--- a/scripts/update.sh
+++ b/scripts/update.sh
@@ -24,7 +24,11 @@ elif grep -Eqi "Amazon Linux AMI" /etc/issue || grep -Eq "Amazon Linux AMI" /etc
 elif grep -Eqi "Debian" /etc/issue || grep -Eq "Debian" /etc/*-release; then
 	OSNAME='debian'
 elif grep -Eqi "Ubuntu" /etc/issue || grep -Eq "Ubuntu" /etc/*-release; then
+
 	OSNAME='ubuntu'
+	sudo ln -sf /bin/bash /bin/sh
+	# sudo dpkg-reconfigure dash
+	
 elif grep -Eqi "Raspbian" /etc/issue || grep -Eq "Raspbian" /etc/*-release; then
 	OSNAME='raspbian'
 elif grep -Eqi "Deepin" /etc/issue || grep -Eq "Deepin" /etc/*-release; then
@@ -35,14 +39,8 @@ fi
 
 #pip uninstall public
 echo "use system version: ${OSNAME}"
-
-if [ "$OSNAME" == 'macos' ]; then
-	echo 'The development environment only needs to be downloaded again!'
-	exit 0
-else
-	curl -fsSL  https://raw.githubusercontent.com/midoks/mdserver-web/master/scripts/update/${OSNAME}.sh | sh
-fi
+curl -fsSL  https://raw.githubusercontent.com/midoks/mdserver-web/master/scripts/update/${OSNAME}.sh | sh
 
 endTime=`date +%s`
-outTime=($endTime-$startTime)/60
+((outTime=($endTime-$startTime)/60))
 echo -e "Time consumed:\033[32m $outTime \033[0mMinute!"
\ No newline at end of file
diff --git a/scripts/update/macos.sh b/scripts/update/macos.sh
new file mode 100644
index 000000000..fbf382aba
--- /dev/null
+++ b/scripts/update/macos.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
+export PATH
+LANG=en_US.UTF-8
+
+echo 'The development environment only needs to be downloaded again!'
+exit 0
\ No newline at end of file