URL Decode an string
$ urlcodec https%3A%2F%2Fwww.google.com%2Fsearch%3Fsource%3Dhp%26ei%3D9TRTXfHRIYOZjLsPkZ2EyAw%26q%3Durl%2Bdecode%26oq%3Durl%2Bdecode
https://www.google.com/search?source=hp&ei=9TRTXfHRIYOZjLsPkZ2EyAw&q=url+decode&oq=url+decode
URL Encode an string
$ urlcodec -e https://www.google.com/search?source=hp&ei=9TRTXfHRIYOZjLsPkZ2EyAw&q=url+decode&oq=url+decode
https%3A%2F%2Fwww.google.com%2Fsearch%3Fsource%3Dhp%26ei%3D9TRTXfHRIYOZjLsPkZ2EyAw%26q%3Durl%2Bdecode%26oq%3Durl%2Bdecode