本文将介绍用shell脚本来分析Nginx负载均衡器的日志，这样可以快速得出排名靠前的网站和IP等，推荐大家使用线上环境下的shell脚本。本文中的shell脚本又分为两种情况，第一种情况是Nginx作为最前端的负载均衡器，其集群架构为Nginx+Keepalived时，脚本内容如下所示：
- vim log-nginx.sh
- #!/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 "-------------------------------------------"
- 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
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