如何通过FTP下载名称中包含当前日期的所有文件？

I have a file format which is similar to "IDY03101.200901110500.axf". I have about 25 similar files residing in an ftp repository and want to download all those similar files only for the current date. I have used the following code, which is not working and believe the regular expression is incorrect.I have a file format which is similar to "IDY03