diff --git a/scripts/install/centos.sh b/scripts/install/centos.sh
index 1628b0617..4b4ddfa8e 100755
--- a/scripts/install/centos.sh
+++ b/scripts/install/centos.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 mkdir -p /www/server
diff --git a/scripts/install/debian.sh b/scripts/install/debian.sh
index 6d9cf5539..02e9165ad 100644
--- a/scripts/install/debian.sh
+++ b/scripts/install/debian.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 
@@ -75,9 +75,6 @@ if [ ! -d /www/server/mdserver-web ];then
 fi 
 
 cd /www/server/mdserver-web && python3 -m venv .
-if [ ! -f /usr/local/bin/pip3 ];then
-    python3 -m pip install --upgrade pip setuptools wheel -i https://mirrors.aliyun.com/pypi/simple
-fi
 
 
 cd /www/server/mdserver-web/scripts && bash lib.sh
@@ -90,6 +87,10 @@ else
     cd /www/server/mdserver-web && pip3 install -r /www/server/mdserver-web/requirements.txt
 fi
 
+if [ ! -f /usr/local/bin/pip3 ];then
+    python3 -m pip install --upgrade pip setuptools wheel -i https://mirrors.aliyun.com/pypi/simple
+fi
+
 pip install --upgrade pip
 pip3 install gunicorn==20.1.0
 pip3 install gevent==21.1.2
diff --git a/scripts/install/fedora.sh b/scripts/install/fedora.sh
index b4a666099..e87338976 100644
--- a/scripts/install/fedora.sh
+++ b/scripts/install/fedora.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 mkdir -p /www/server
diff --git a/scripts/install/macos.sh b/scripts/install/macos.sh
index 8270baae2..7120efea3 100755
--- a/scripts/install/macos.sh
+++ b/scripts/install/macos.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 USER=$(who | sed -n "2,1p" |awk '{print $1}')
diff --git a/scripts/install/ubuntu.sh b/scripts/install/ubuntu.sh
index 2fab00503..ea7d89e86 100644
--- a/scripts/install/ubuntu.sh
+++ b/scripts/install/ubuntu.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 
diff --git a/scripts/install/unknow.sh b/scripts/install/unknow.sh
index 496ad0973..fb80c4543 100644
--- a/scripts/install/unknow.sh
+++ b/scripts/install/unknow.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 echo "unkown server!!!"
\ No newline at end of file
diff --git a/scripts/update/centos.sh b/scripts/update/centos.sh
index fbcad3921..0f3e049de 100755
--- a/scripts/update/centos.sh
+++ b/scripts/update/centos.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 
diff --git a/scripts/update/debian.sh b/scripts/update/debian.sh
index 96c1d985c..f180b66cb 100644
--- a/scripts/update/debian.sh
+++ b/scripts/update/debian.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 
diff --git a/scripts/update/fedora.sh b/scripts/update/fedora.sh
index 717537cce..5a44a6bd0 100644
--- a/scripts/update/fedora.sh
+++ b/scripts/update/fedora.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 
diff --git a/scripts/update/macos.sh b/scripts/update/macos.sh
index fbf382aba..10f6abca1 100644
--- a/scripts/update/macos.sh
+++ b/scripts/update/macos.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 echo 'The development environment only needs to be downloaded again!'
diff --git a/scripts/update/ubuntu.sh b/scripts/update/ubuntu.sh
index a3f8bd440..a4611fca3 100644
--- a/scripts/update/ubuntu.sh
+++ b/scripts/update/ubuntu.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 
diff --git a/scripts/update/unknow.sh b/scripts/update/unknow.sh
index fce42c80b..cd32c60cf 100644
--- a/scripts/update/unknow.sh
+++ b/scripts/update/unknow.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
-export PATH
+export $PATH
 LANG=en_US.UTF-8
 
 echo "update unkown server!!!"
\ No newline at end of file