Shell Programming and Scripting

Hi

we are having more than 10k file source code clutterred across different directories.

1. we want to find duplicate file name
2. all java files and having having below content in various folder under /home/raxit/src

---------
/*comment etc for few line

*/
package hello.a.b.c;

3. We want to read all files/directories/subdirectories...using grep i can find package, and based on package i want to create directories/subdirectories and copy those file in appropriate directory.

Any idea how to achieve this using sh/perl/sed ?

Raxit