Index: nutchez-0.2/src/shell/client_install_func.sh
===================================================================
--- nutchez-0.2/src/shell/client_install_func.sh	(revision 234)
+++ nutchez-0.2/src/shell/client_install_func.sh	(revision 235)
@@ -285,6 +285,7 @@
   chmod 755 /opt/nutchez
   debug_info "$scp_packages_d3"
-  su nutchuser -c "scp -r -o StrictHostKeyChecking=no nutchuser@$1:/home/nutchuser/nutchez/source/NutchezForClientOf_$Master_IP_Address.tar.gz /home/nutchuser/nutchez/source"
-
+  if [ ! -e "NutchezForClientOf_$Master_IP_Address.tar.gz" ];then
+      su nutchuser -c "scp -r -o StrictHostKeyChecking=no nutchuser@$1:/home/nutchuser/nutchez/source/NutchezForClientOf_$Master_IP_Address.tar.gz /home/nutchuser/nutchez/source"
+  fi
 }