vim /usr/local/nginx/sbin/nginx_logretate.sh
# ================================================
#! /bin/bash
d=`date -d "-1 day" +%Y%m%d`
logdir="/usr/local/nginx/logs"
nginx_pid="/usr/local/nginx/logs/nginx.pid"
cd $logdir
for log in `ls *.log`
do
mv $log $log-$d
done
/bin/kill -HUP `cat $nginx_pid`
service crontab start
contab -e
00 0 * * * sh /usr/local/nginx/sbin/nginx_logretate.sh