Nginx按天或按小时切割日志
Nginx日志访问量大的时候，日志文件增长很快，查询日志很不方便，以下为实现按天或者小时将access文件切割：
按天切割方法如下：
创建log.sh脚本：
vim /usr/local/nginx/logs/log.sh
#!/bin/bash
LOG_PATH=/usr/local/nginx/logs/
YESTERDAY=$(date -d "yesterday" +%Y-%m-%d)
mv ${LOG_PATH}access.log ${LOG_PATH}access-${YESTERDAY}.log
mv ${LOG_PATH}error.log ${LOG_PATH}error-${YESTERDAY}.log
/usr/local/nginx/sbin/nginx -s reload给权限
chmod +x /usr/local/nginx/logs/log.shcrontal -e 加入定时执行，每天凌晨的时候，对日志进行切割，并reload
00 00 * * * /usr/local/nginx/logs/log.sh按小时切割：
创建log.sh脚本：
vim /usr/local/nginx/logs/log.sh
#!/bin/bash
LOG_PATH=/usr/local/nginx/logs/
YESTERDAY=$(date -d "-1hours" +%Y-%m-%d_%H)
mv ${LOG_PATH}access.log ${LOG_PATH}access-${YESTERDAY}.log
mv ${LOG_PATH}error.log ${LOG_PATH}error-${YESTERDAY}.log
/usr/local/nginx/sbin/nginx -s reload给权限
chmod +x /usr/local/nginx/logs/log.shcrontal -e 加入定时执行，每个整点的时候，对日志进行切割，并reload
*/60 * * * * /usr/local/nginx/logs/log.sh