1、编写shell脚本，创建nginx_log.sh文件
#!/bin/bash
source /etc/profile
#设置Nginx日志文件存放目录
log_path="/usr/local/nginx/logs"
YESTERDAY=`date -d "yesterday" +"%Y%m%d"`
#对日志进行重命名
mv ${LOG_PATH}/access.log ${LOG_PATH}/access.log_$YESTERDAY
pid_path=“/usr/local/nginx/logs/nginx.pid“
#重载日志文件
kill -USR1 `cat ${PID_PATH}`
#对日志进行压缩
gzip ${LOGS_PATH}/access_${YESTERDAY}.log
2、修改nginx_log.sh文件权限，此处设置为可执行权限
chmod a+x /usr/local/nginx/nginx_log.sh
3、添加任务计划
[root@nginx171 ~]# vim /etc/crontab
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
# For details see man 4 crontabs
# Example of job definition:
# .---------------- minute (0 - 59)
# | .------------- hour (0 - 23)
# | | .---------- day of month (1 - 31)
# | | | .------- month (1 - 12) OR jan,feb,mar,apr ...
# | | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# | | | | |
# * * * * * user-name command to be executed
00 00 * * * root /usr/local/nginx/nginx_log.sh
4、查看效果，/usr/local/nginx/logs目录下多出一个日志文件
