write a script to detect active google IP from your workstation

getAliveIP.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/bash
+
+####################
+#
+# only for fun, sometimes the G service is not stable from extracted IP address.
+# not figure out yet why it happens... firwall? 
+#
+# if any bug, feel feel to contact yongjie.gong@gmail.com
+####################
+
+command=`which curl`
+[ $? -ne 0 ] && echo "can't find curl, exiting..." && exit 1
+
+[ ! -x "$command" ] && echo "$command is not executable, exiting." && exit 1
+
+curl --max-time 16 --connect-timeout 10 -o README.md https://github.com/Playkid/Google-IPs/blob/master/README.md 
+[ $? -ne 0 ] && echo "download IP source file failed" && exit 1
+echo "download README.md success..."
+echo
+
+grep http README.md  | grep "<td>" | awk -F">" '{print $3}' | sed 's/[^0-9|.]//g' > ./ip.log
+
+
+[ ! -f ./ip.log ] && echo "generate ip.log failed" && exit 1
+echo "parse ip address success"
+
+while read ip 
+do
+
+	speed=`curl --max-time 10 --connect-timeout 2 -r 0-204800 -L -w %{speed_download} -o/dev/null -s "$ip"`
+	ret=$?
+
+	if [ $ret -eq 0 ];then
+	    curl --max-time 10 --connect-timeout 2 "http://$ip/#newwindow=1&q=linux" > /dev/null 2>&1
+		ret=$?
+
+		if [ $ret -eq 0 ];then
+			echo "" 
+			echo "speed:$speed (byte/second) from $ip "
+		fi
+    fi 
+
+	echo -n "."
+
+done < ./ip.log