nginx日志会随着访问量而变大，较大的日志会影响分析日志时对日志的分析和处理，我们可以使用shell对nginx日志进行定时分割，以周或者天，对于时间久的日志可以定时删除，减小磁盘的浪费

代码：

# cat logrotate.sh #!/bin/bash#rotate nginx logs#writen by AikerPATH=$PATH://usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/binlogs_path=/var/log/nginxd=$(date -d "-1 day" +%F)mv $logs_path/access.log $logs_path/access_${d}.logmv $logs_path/error.log $logs_path/error_${d}.log#向nginx主进程发送USR1信号重新打开日志文件kill -USR1 $(cat /var/run/nginx.pid)

针对多个日志的切割：

#!/bin/bash#rotate nginx logs#writen by AikerPATH=$PATH:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/binlogs_path=/var/log/nginxd=$(date -d "-1 day" +%F)cd ${logs_path}for logs in `ls *.log`    do        mv $logs $logs-$ddone#向nginx主进程发送USR1信号重新打开日志文件也可以：/bin/kill -HUP `cat $nginx_pid`kill -USR1 $(cat /var/run/nginx.pid)

定时切割日志：

0 0 * * 0 /root/script/logrotate.sh > /dev/null 2>&1

# ll /var/log/nginx/                         total 64-rw-r--r-- 1 nginx root  3205 Feb 12 11:42 access_2018-02-11.log-rw-r--r-- 1 nginx root 41951 Feb 12 11:53 access.log-rw-r--r-- 1 nginx root 14441 Feb  9 10:12 error_2018-02-11.log-rw-r--r-- 1 nginx root     0 Feb 12 11:43 error.log