问题：
发现网站出错了
解决：
- 需要安装 mail & sendmail/postfix ，可以使用 echo “ttt” | mail -s “mail test” ***@sss.com 测试下邮件发送是否正常
定时执行 TrackNginx500.sh 即可
TrackNginx500.sh 如下：
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#!/bin/bash #扫描nginx accesslog 如果发现500 则发邮件給fanghua.tang@yek.me 会出现重复发送 errlog=`tail -n 2000 /var/log/nginx/access.log | grep '" [5][0-9][0-9] ' |grep -v ' 499 ' |tail -n 100 ` echo $errlog errcount=`echo $errlog |wc -w` echo "errcount: $errcount" if [ $errcount -gt 0 ] then mv /var/log/nginx/lastemailerrlog /var/log/nginx/lastemailerrlog.2 echo "$errlog" >/var/log/nginx/lastemailerrlog diff /var/log/nginx/lastemailerrlog /var/log/nginx/lastemailerrlog.2 diffret=`echo ${PIPESTATUS[0]}` if [ '0' = $diffret ] then echo '重复跳过发送错误'; else echo '有错误发邮件' echo "$errlog \n"|mail -r 'fanghua.tang@yek.me' -s '服务器nginx 出现500' fanghua.tang@yek.me fi else echo '正常' fi |