#!/bin/bash
#切割nginx的日志，然后定期删除
source /etc/profile
log_path=/usr/local/nginx/logs
d=`date +%Y-%m-%d`
d90=`date -d'5 day ago' +%Y-%m-%d`   ##5天前
cd ${log_path} && cp access.log $log_path/backuplog/accesslog$d.log
gzip -f $log_path/backuplog/accesslog$d.log
echo > access.log
rm -rf $log_path/backuplog/accesslog${d90}.log.gz

最后写个crontab 

59 23 * * * /bin/sh /data/shell/accesslog.sh