perl統計日誌文件ip及數量

1、先查看下日誌的格式：

"1.162.50.56, 19.97.154.15" - - [04/Mar/2012:10:15:33 +0800] "GET /book/12688.html HTTP/1.0" 200 48407 "http://www.baidu.com/" "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; GTB6.4; znwb6500; .NET CLR 1.1.4322; CIBA; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; AskTbPTV2/5.9.1.14019)" "287000"

這裏的ip地址可能是1個或多個；

2、代碼

#!/usr/bin/perl
my %totalip;
my $key;
my $ip1 = '';

sub hashValueIp {
    $totalip{$b} <=> $totalip{$a};
}

while(<>){
    chomp;
    ($ip1) = /^"(.*?)"/;
    my @ips = split(/, /,$ip1);
    foreach my $index (0..$#ips){
        $totalip{$ips[$index]}++;
       }
    }
print "ip address       count \n";
foreach $key (sort hashValueIp(keys %totalip)){
    print $key."        ".$totalip{$key}."\n";
}

6行：構建子函數，使得輸出按照ip的次數進行排序；

12行：這裏的?是去除*匹配符的貪婪性，即可以獲取第一對""之間的ip地址；

15行：統計ip數

輸出：

 

ip address      count
18.44.95.134  6466
19.7.154.16   5323
19.7.154.15   4811
19.53.48.2    574
14.193.167.1   290
17.0.0.1       172
21.6.3.77      114