使用shell統計出出現次數排名top10的網址

#!/bin/shfoo(){if [ $# -ne 1 ];thenecho "Usage:$0 filename"; exit -1fiegrep -o "http://[a-zA-Z0-9.]+\.[a-zA-Z]{2,3}" website | awk '{ count[$0]++ } END { printf("%-30s %s\n","wensite","count"); for(ind in count) { printf("%-30s %d\n",ind,count[ind]); } }' | sort -nrk 2 | head -n 10 >websorted2.txt;}foo website 

例子：

檔案website中的內容：

http://www.google.com
http://www.baidu.com
http://www.sina.com
http://www.bjtu.edu.cn
http://www.codeproject.com
http://www.csdn.com
http://www.sohu.com
http://www.yahoo.com
http://mail.163.com
http://www.bjtu.edu.cn
http://www.codeproject.com
http://www.csdn.com
http://www.sohu.com
http://www.yahoo.com
http://mail.163.com
http://www.codeproject.com
http://www.csdn.com
http://www.sohu.com
http://www.yahoo.com
http://mail.163.com
http://www.qq.com
http://www.hao123.com
http://www.163.com
http://youku.com
http://taobao/com
http://www.bjtu.edu.cn
http://www.codeproject.com
http://www.csdn.com
http://www.sohu.com
http://www.yahoo.com
http://mail.163.com
http://www.codeproject.com
http://www.csdn.com
http://www.sohu.com
http://www.yahoo.com
http://mail.163.com
http://www.qq.com
http://www.hao123.com
http://www.163.com
http://youku.com
http://taobao/com

產生的檔案內容為（即結果）

http://www.yahoo.com           5
http://www.sohu.com            5
http://www.csdn.com            5
http://www.codeproject.com     5
http://mail.163.com            5
http://www.bjtu.edu.cn         3
http://youku.com               2
http://www.qq.com              2
http://www.hao123.com          2
http://www.163.com             2