Don't report error when add an existed ip address

windows/scripts/ip

@@ -463,17 +463,6 @@ elif [[ $object == "addr" ]] ; then
         exit 1
     fi
 
-    if [[ "$opt_family" == "ipv4" || "$opt_family" == "" ]] ; then
-        ipcmd="netsh interface ip $command address"
-        address="$address $mask"
-    elif [[ "$opt_family" == "ipv6" ]] ; then
-        ipcmd="netsh interface ipv6 $command address"
-    else
-        echo $orig_cmd
-        echo "Error: unsupported family \"$opt_family\""
-        exit 1
-    fi
-
     while [[ "$1" != "" ]] ; do
         case $1 in
             dev)
@@ -486,6 +475,26 @@ elif [[ $object == "addr" ]] ; then
         shift
     done
 
+    if [[ "$opt_family" == "ipv4" || "$opt_family" == "" ]] ; then
+        if [[ "$command" == "add" ]] ; then
+            netsh interface ip show address \"$dev\" | grep -q -F $address && exit 0
+        fi
+
+        ipcmd="netsh interface ip $command address"
+        address="$address $mask"
+    elif [[ "$opt_family" == "ipv6" ]] ; then
+        if [[ "$command" == "add" ]] ; then
+            netsh interface ipv6 show address \"$dev\" level=normal | \
+                grep -q -F $address && exit 0
+        fi
+
+        ipcmd="netsh interface ipv6 $command address"
+    else
+        echo $orig_cmd
+        echo "Error: unsupported family \"$opt_family\""
+        exit 1
+    fi
+
     ipcmd="$ipcmd \"$dev\" $address"
 
 elif [[ $object == "addrlabel" ]] ; then
@@ -513,6 +522,7 @@ elif [[ $object == "addrlabel" ]] ; then
       fi
 
       if [[ $command == "add" ]] ; then
+          netsh interface ipv6 show prefixpolicies | grep -q -F $prefix && exit 0
           ipcmd="$ipcmd $command prefixpolicy $prefix $precedence $label"
       else
           ipcmd="$ipcmd $command prefixpolicy $prefix"

windows/scripts/post-install.sh

@@ -53,10 +53,9 @@ echo Checking Windows OEM Codepage ...
 _charset=$(ipwin codepage) || _charset=""
 echo Windows OEM Codepage is ${_charset}
 
-_filename="~/.minttyrc"
+_filename=".minttyrc"
 echo Checking  ${_filename} ...
 if [[ ! -f ${_filename} ]] ; then
-    echo Creating ${_filename}
     cat <<EOF > ${_filename}
 BoldAsFont=no
 Font=Courier New