自动删除15天前的网站日志
crontab -e 编辑任务列表
0 3 * * * rm -rf /var/www/vhosts/591wed.com/statistics/logs/`date -d '-15 days' +'access'_'log'_\%Y_\%m_\%d`
0 3 * * * rm -rf /var/www/vhosts/591wed.com/statistics/logs/`date -d '-15 days' +'error'_'log'_\%Y_\%m_\%d`
service crond restart 重启服务