非常的简单， 主要是留一个记号， 方便以后使用
#!/bin/bash
access_path="/usr/local/nginx/logs/"
logs_path="/webdata/logs/"
mkdir -p ${logs_path}$(date ‘+%y_%m‘)/$(date ‘+%d‘)/
mv ${access_path}access.log ${logs_path}$(date ‘+%y_%m‘)/$(date ‘+%d‘)/access_$(date ‘+%y_%m_%d‘).log
kill -USR1 `cat /usr/local/nginx/logs/nginx.pid`
/etc/init.d/fastcgi restart
#crontab -l 02 17 * * * /bin/bash /etc/cron.daily/logcut.sh
原文：http://my.oschina.net/harlanblog/blog/411100