已知nginx访问的日志文件在/usr/local/nginx/logs/access.log内，请统计下早上10点到12点 来访ip最多的是哪个?
111.199.186.68 – [15/Sep/2017:09:58:37 +0800] “//plugin.php?id=security:job” 200 “POST //plugin.php?id=security:job HTTP/1.1″”http://a.lishiming.net/forum.php?mod=viewthread&tid=11338&extra=page%3D1%26filter%3Dauthor%26orderby%3Ddateline” “Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3141.7 Safari/537.36”
203.208.60.208 – [15/Sep/2017:09:58:46 +0800] “/misc.php?mod=patch&action=ipnotice&_r=0.05560809863330207&inajax=1&ajaxtarget=ip_notice” 200 “GET /misc.php?mod=patch&action=ipnotice&_r=0.05560809863330207&inajax=1&ajaxtarget=ip_notice HTTP/1.1″”http://a.lishiming.net/forum.php?mod=forumdisplay&fid=65&filter=author&orderby=dateline” “Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3141.7 Safari/537.36”
#!/bin/bash
#这个脚本用来分析Nginx访问日志
#作者：猿课-阿铭 www.apelearn.com
#日期：2018-11-01
export LANG=en
log="/usr/local/nginx/logs/access.log"
t=`date +%d/%b/%Y:1[01]:[0-5][0-9]:`
egrep "$t" $log|awk '{print $1}' |sort -n |uniq -c |sort -n |tail -1 |awk '{print $2}'