linux 三剑客之 awk

awk 用法：

awk -F  参数用法：指定分隔符

我的源文档：

more domain.log

http://www.baidu.com/index.html
http://www.google.com/1.html
http://www.baidu.com/1.html

[[email protected] ~]# awk -F  "/" ‘{print $3}‘ domain.log
www.baidu.com
www.google.com
www.baidu.com[[email protected] ~]# awk -F  "/" ‘{print $1}‘ domain.log
http:
http:
http:[[email protected] ~]# awk -F  "/" ‘{print $2}‘ domain.log

[[email protected] ~]# awk -F  "/" ‘{print $4}‘ domain.log
index.html
1.html
1.html

[[email protected] ~]# awk -F  "//" ‘{print $4}‘ domain.log

[[email protected] ~]# awk -F  "//" ‘{print $2}‘ domain.log
www.baidu.com/index.html
www.google.com/1.html
www.baidu.com/1.html

[[email protected] ~]# awk -F  "//" ‘{print $2}‘ domain.log |sort |uniq -c|sort -rn
      2 www.baidu.com/index.html
      1 www.google.com/1.html
      1 www.baidu.com/1.html