分享下shell脚本分析nginx日志的方法,负责ginx前端日志分析的shell脚本,以及以Nginx作为Web端,置于LVS后面时的日志分析脚本,需要的朋友参考下。
nginx日志分析shell/ target=_blank class=infotextkey>shell脚本
情况一,nginx作为最前端的负载均衡器,其集群架构为nginx+keepalived时,脚本:
vim log-nginx.sh
复制代码 代码示例:
#!/bin/bash
if [$# -eq 0 ]; then
echo "Error: please specify logfile."
exit 0
else
LOG=$1
fi
if [ ! -f $1 ]; then
echo "Sorry, sir, I can""t find this
apache log file, pls try again!"
exit 0
fi
################################
echo "Most of the ip:"
echo "-------------------------------------------"
linuxjishu/13830.html target=_blank class=infotextkey>awk ""{ print $1 }""$LOG| sort| uniq -c| sort -nr| head -10
echo
echo
###################
echo "Most of the time:"
echo "--------------------------------------------"
awk ""{ print $4 }""$LOG| cut -c 14-18| sort| uniq -c| sort -nr| head -10
echo
echo
#######################
echo "Most of the page:"
echo "--------------------------------------------"
awk ""{print $11}""$LOG|
sed ""s/^.*(.cn*)"/1/g""| sort| uniq -c| sort -rn| head -10
echo
echo
#####################3
echo "Most of the time / Most of the ip:"
echo "--------------------------------------------"
awk ""{ print $4 }""$LOG| cut -c 14-18| sort -n| uniq -c| sort -nr| head -10 > timelog
for i in ""awk ""{ print $2 }"" timelog""
do
num=""grep $i timelog| awk ""{ print $1 }""""
echo "$i $num"
ip=""grep $i $LOG| awk ""{ print $1}""| sort -n| uniq -c| sort -nr| head -10""
echo "$ip"
echo
done
rm -f timelog
情况二,以nginx作为web端,置于lvs后面,这时要剔除掉lvs的IP地址,比如lvs服务器的公网ip地址(像203.93.236.141、203.93.236.145等)。
可以将第一种情况的脚本略微调整,如下:
复制代码 代码示例:
#!/bin/bash
if [$# -eq 0 ]; then
echo "Error: please specify logfile."
exit 0
else
cat$1| egrep -v '203.93.236.141|145' > LOG
fi
if [ ! -f$1 ]; then
echo "Sorry, sir, I can't find this apache log file, pls try again!"
exit 0
fi
###################################################
echo "Most of the ip:"
echo "-------------------------------------------"
awk '{ print$1 }' LOG| sort| uniq -c| sort -nr| head -10
echo
echo
####################################################
echo "Most of the time:"
echo "--------------------------------------------"
awk '{ print$4 }' LOG| cut -c 14-18| sort| uniq -c| sort -nr| head -10
echo
echo
####################################################
echo "Most of the page:"
echo "--------------------------------------------"
awk '{print$11}' LOG| sed 's/^.*(.cn*)"/1/g'| sort| uniq -c| sort -rn| head -10
echo
echo
####################################################
echo "Most of the time / Most of the ip:"
echo "--------------------------------------------"
awk '{ print$4 }' LOG| cut -c 14-18| sort -n| uniq -c| sort -nr| head -10 > timelog
for i in 'awk '{ print$2 }' timelog'
do
num='grep$i timelog| awk '{ print$1 }''
echo "$i$num"
ip='grep$i LOG| awk '{ print$1}'| sort -n| uniq -c| sort -nr| head -10'
echo "$ip"
echo
done
rm -f timelog
可以用此脚本分析文件名为www_tomcat_20110331.log的文件。
[root@localhost 03]# sh counter_nginx.sh www_tomcat_20110331.log
比较关注脚本运行后的第一项和第二项结果,即访问网站最多的IP和哪个时间段IP访问比较多,如下:
Most of the ip:
-------------------------------------------
5440 117.34.91.54
9 119.97.226.226
4 210.164.156.66
4 173.19.0.240
4 109.230.251.35
2 96.247.52.15
2 85.91.140.124
2 74.168.71.253
2 71.98.41.114
2 70.61.253.194
Most of the time:
--------------------------------------------
12 15:31
11 09:45
10 23:55
10 21:45
10 21:37
10 20:29
10 19:54
10 19:44
10 19:32
10 19:13
如果对日志的要求不高,可以直接通过awk和sed来分析linux日志(如果对perl熟练也可以用它来操作),还可以通过awstats来进行详细分析,后者尤其适合web服务器和邮件服务器。
另外,如果对日志有特殊需求的话,还可以架设专用的日志服务器来收集Linux服务器日志。