Oracle: easy access the file system from PLSQL

How to easily access the file system from PLSQL ?
The goal is to perform an simple command like:
- DOS: dir
- LINUX: ls

and get the result as select.

Very good tool is offered by:
http://plsqlexecoscomm.sourceforge.net/


You need to download the PLSQL package from the web site above, install the PLSQL script and then perform the simple select:

 select *   
 from table(file_pkg.get_file_list(file_pkg.get_file('/')))