$ ./rss.sh 3 http://news.google.com/news?pz=1&cf=all&ned=us&hl=en&topic=w&output=rss
[1] 20566
[2] 20567
[3] 20568
[4] 20569
[5] 20570
[1]   Done                    ./rss.sh 3 http://news.google.com/news?pz=1
[2]   Done                    cf=all
[3]   Done                    ned=us
[4]-  Done                    hl=en
[5]+  Done                    topic=w