I should write program in C++ which will be runed every 30 minutes on server. Somebody said me that I should put my program in chrone directory. I have no idea what it means. I have never worked on UNIX. Can I explain me how can I do this?

And one more question, this program should find all files which are using by costomers of server, what opportunities does C++ has to make it?

Thank you for help...