diff --git a/debian-setup.sh b/debian-setup.sh
index 8092f49..1b03fd5 100644
--- a/debian-setup.sh
+++ b/debian-setup.sh
@@ -48,7 +48,9 @@ if [ "$DebianVersionMain" == '10' ]
 then
   chmod o+w /etc/sudoers
   ## Debian 10 上，不存在 includedir，需要自己添加。而 Debian 11.1 上，已经存在 @includedir
-  sed -i "s|#includedir /etc/sudoers.d|includedir /etc/sudoers.d|g" /etc/sudoers  # allow users in /etc/sudoers.d/ folder to sudo
+  echo >> /etc/sudoers
+  echo includedir /etc/sudoers.d >> /etc/sudoers  # allow users in /etc/sudoers.d/ folder to sudo
+  echo >> /etc/sudoers
   chmod o-w /etc/sudoers
 fi
 echo
diff --git a/docker-allow-user.sh b/docker-allow-user.sh
index 3e21801..9e76e93 100644
--- a/docker-allow-user.sh
+++ b/docker-allow-user.sh
@@ -12,5 +12,6 @@ else
 fi
 
 sudo usermod -aG docker $DOCKERUSER
-sudo newgrp docker
 sudo systemctl restart docker
+groups $DOCKERUSER
+newgrp docker  # run as the docker group in the current shell
diff --git a/geth-install.sh b/geth-install.sh
index 2cfcad1..96bb796 100644
--- a/geth-install.sh
+++ b/geth-install.sh
@@ -15,7 +15,7 @@ else
   fi
 fi
 
-if [[ "$(uname)" = "linux" ]]
+if [[ "$(uname)" = "Linux" ]]
 then
   # 用 dpkg --print-architecture 更直接
   ARCH=`dpkg --print-architecture`
diff --git a/ipfs-install.sh b/ipfs-install.sh
index 8f3f677..76420e2 100755
--- a/ipfs-install.sh
+++ b/ipfs-install.sh
@@ -14,7 +14,7 @@ else
   fi
 fi
 
-if [[ "$(uname)" = "linux" ]]
+if [[ "$(uname)" = "Linux" ]]
 then
   # 用 dpkg --print-architecture 更直接
   ARCH=`dpkg --print-architecture`
diff --git a/nixhome/.bashrc b/nixhome/.bashrc
index ca28ade..f1dc7d9 100644
--- a/nixhome/.bashrc
+++ b/nixhome/.bashrc
@@ -56,6 +56,7 @@ alias grep='grep --color=auto'
 alias fgrep='fgrep --color=auto'
 alias egrep='egrep --color=auto'
 alias su='su -'
+alias npmc='npm --registry https://registry.npm.taobao.org'
 if [[ "$(uname)" = "Darwin" ]];
 then
   alias l='ls -lG'
diff --git a/nixhome/.npmrc_taobao b/nixhome/.npmrc_taobao
index d93e496..ae44462 100644
--- a/nixhome/.npmrc_taobao
+++ b/nixhome/.npmrc_taobao
@@ -1,7 +1 @@
 registry=https://registry.npm.taobao.org
-
-## npm config set registry https://registry.npm.taobao.org
-## npm config set registry https://registry.npmjs.org
-## npm config get registry
-## npm config ls -l
-## npm --registry registry https://registry.npm.taobao.org ...
\ No newline at end of file
diff --git a/portscan-mac.sh b/portscan-mac.sh
deleted file mode 100644
index 75e001e..0000000
--- a/portscan-mac.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-if [ "$1" ]
-then
-  PORT=$1
-else
-  echo "=== 需要查看的端口号:"
-  read -p ">>> " PORT
-fi
-
-lsof -i tcp:$PORT
\ No newline at end of file
diff --git a/portscan-windows.bat b/portscan.bat
similarity index 100%
rename from portscan-windows.bat
rename to portscan.bat
diff --git a/portscan-linux.sh b/portscan.sh
similarity index 50%
rename from portscan-linux.sh
rename to portscan.sh
index 086bfc9..674a0a1 100644
--- a/portscan-linux.sh
+++ b/portscan.sh
@@ -6,4 +6,9 @@ else
   read -p ">>> " PORT
 fi
 
-netstat -tunlp | grep $PORT
+if [[ "$(uname)" = "Darwin" ]]
+then
+  lsof -i tcp:$PORT
+else
+  netstat -tunlp | grep $PORT
+fi
diff --git a/proxy.bat b/proxy.bat
index 4721c1a..a11368d 100644
--- a/proxy.bat
+++ b/proxy.bat
@@ -5,7 +5,7 @@ echo === Enter [s] to start, [t] to terminate or [anything else] for no change
 set /p TODOMODE=">>> "
 echo;
 if "s" == "%TODOMODE%" (
-  set ALL_PROXY=socks5://127.0.0.1:1080
+  set all_proxy=socks5://127.0.0.1:1080
   echo "--- 已开启网络代理"
 ) else if "t" == "%TODOMODE%" (
   set all_proxy=
diff --git a/proxy.sh b/proxy.sh
index 24c7995..8d83a2e 100755
--- a/proxy.sh
+++ b/proxy.sh
@@ -5,13 +5,13 @@ function proxy(){
     read -p ">>> " proxySwitch
     if [ $proxySwitch ] && [ $proxySwitch == "s" ]
     then
-        export ALL_PROXY=socks5://127.0.0.1:1086
-        export http_proxy=http://127.0.0.1:8090
-        export https_proxy=https://127.0.0.1:8090
+        export all_proxy=socks5://127.0.0.1:1086
+        export http_proxy=socks5://127.0.0.1:1086
+        export https_proxy=socks5://127.0.0.1:1086
         echo -e "--- 已开启网络代理"
     elif [ $proxySwitch ] && [ $proxySwitch == "t" ]
     then
-        unset ALL_PROXY
+        unset all_proxy
         unset http_proxy
         unset https_proxy
         echo -e "--- 已关闭网络代理"
diff --git a/seafile-install.sh b/seafile-install.sh
index cdf26e3..bfef502 100755
--- a/seafile-install.sh
+++ b/seafile-install.sh
@@ -29,7 +29,7 @@ sudo ./setup-seafile.sh # to setup seafile+sqlite (setup-seafile-mysql.sh is for
 sudo ./seafile.sh start
 
 ## changed "127.0.0.1:8000" to "0.0.0.0:8000", otherwise it can only be accessed on the localhost, unless using nginx/apache to proxy
-# sudo sed -i "s/127\.0\.0\.1/0.0.0.0/g" ../conf/gunicorn.conf.py
+# sudo sed -i "s|127.0.0.1|0.0.0.0|g" ../conf/gunicorn.conf.py
 ## to change seahub port, to edit gunicorn.conf.py, it works although it still promts "Starting seahub at port 8000 ...". 
 ## (Directly `./seahub.sh start <PORT>` prompts "Starting seahub at port <PORT> ..." but it actually doesn't listen on <PORT>.)
 sudo ./seahub.sh start # the first run will asks to setup an admin account