awk日志分析

前言

今天我们来讲讲如何用awk进行网站日志分析，得到页面平均耗时排行

文件

[xingxing.dxx@30_28_6_20 ~]$ cat logs
222.83.181.42 - - [09/Oct/2010:04:04:03 +0800] GET /pages/international/tejia.php HTTP/1.1 "200" 15708 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Sicent; WoShiHoney.B; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)" "-" 0.037

按照空格分隔的话，第7个字段 是页面访问地址,最后一个字段[0.037] 是页面执行时间

[xingxing.dxx@30_28_6_20 ~]$ awk '{print $7,$NF}' logs
/pages/international/tejia.php 0.037

代码

awk 'BEGIN{
print "Enter log file:";
getline loga;
while(getline < loga)
{
    split($7,atmp,"?");
    aListNum[atmp[1]]+=1;
    aListTime[atmp[1]]+=$NF;
    ilen++;
}
close(loga);
print "
total:",ilen,"
======================================
";
for(k in aListNum)
{
    print k,aListNum[k],aListTime[k]/aListNum[k] | "sort -r -n -k3";
}

}'

结果

total: 1 
======================================

/pages/international/tejia.php 1 0.037