Apache日志按天显示，修改Apache http.conf文件，注释默认的日志文件，修改为下面2行
ErrorLog "| /usr/local/apache/bin/rotatelogs /home/logs/www/%Y_%m_%d_error_log 86400 480"
CustomLog "| /usr/local/apache/bin/rotatelogs
/home/logs/www/%Y_%m_%d_access_log 86400 480" common
注意：/usr/local/apache/bin/rotatelogs 需要配置绝对路径