F77: Rename/Moving a file inside a program

From: Babel (hobbit_babelfish_at_yahoo.com)
Date: 11/19/03 

Date: 18 Nov 2003 21:58:27 -0800

I have a loop in which I first read a file (file_start.dat) and do
some computations then write out some data to an output file
(file_end.dat)

Now what i need to do is destroy the file_start.dat and rename
file_end.dat to file_start.dat before I exit the loop
How do I do this ?
I would like to avoid readying the file_end.dat to file_start.dat
record by record. As these files are huge and take considerable time
in readying.
I am thinking of making these DIRECT ACCESS by the way.

Can anyone help me out?

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