nginx日志按天分割，并自动邮件30天前的日志

#!/bin/bash
log_files_path="/usr/local/nginx/logs/"
log_files_dir=${log_files_path}

nginx_sbin="/usr/local/nginx/sbin/nginx"
save_days=30

mv ${log_files_path}access.log ${log_files_dir}access.log_$(date -d "yesterday" +"%Y-%m-%d")

find $log_files_path -mtime +$save_days -exec rm -rf {} \;
$nginx_sbin -s reload