Program to delete entries in Al11

Hi ABAP Gurus,

I had one requirement to develop a report inorder to list the all the files under a folder in AL11

and checks whether each and every one of the file is more than certain number of days old ( parameter again suppose if the parameter is given as 7 days,it must delete the files which are 7 days old. ) and delete them.

Please give me suggestions how can i start with it.

Thanks for your help

Srinivas