This is a simple port of DJGPP's redir utility for those who're stuck with
braindead COMMAND/CMD shells on windows32 that cannot redirect standard
error correctly.

Here's the documentation provided with DJGPP's redir utility (also
provided in the .zip file):

                                     redir
                                       
   DOS, in its many flavors and versions, lacks a decent I/O redirection
   mechanism. Sure, it's got < and > and >>, but what about error
   messages? Lots of people ask, "How do you send those error messages to
   a file?" Well, you use a program like redir.
   
   redir is basically a program that manipulates the standard file
   descriptors by copying them, closing and opening them, etc. Once it
   has the file descriptors where it wants them, it runs your program,
   which inherits the changed descriptors. Thus, redir has nearly
   complete control over the input and output of your program.
   
   It also allows you to view the exit code of the program, and the
   elapsed time of the program, by supplying the appropriate options on
   the command line.
   
   Note that redir is built with command-line expansion and response
   files disabled, so as to allow the application to control that
   themselves. This means that you can't use those features to provide
   redir's options or the command name, but if you use them for the
   command's options, the command will do the expansion if it wants to.
   
   The exit code of redir is 1 if it exits on its own accord, else it
   returns the same error code as the program it runs.
   
   Usage: redir [-i file] [-o file] [-oa file] [-e file] [-ea file] [-eo]
   [-oe] [-x] command [args . . .]
   -i file
          Redirect stdandard input from file
   -o file
          Redirect standard output to file
   -oa file
          Append standard output to file
   -e file
          Redirect standard error to file
   -ea file
          Append standard error to file
   -eo
          Redirect standard error to standard output
   -oe
          Redirect standard output to standard error
   -x
          Print the exit code of the command after it exits. If the exit
          code is 0..255, it is printed as is. If it is not, the low byte
          (0..255) is printed in decimal and the whole value is also
          printed in hex.
          
   Options are processed in the order they are encountered. Thus, "-o foo
   -eo" means "redirect output to foo, then redirect errors there also",
   whereas "-eo -o foo" means "send errors to where output was going,
   then move output to foo".
   
   Examples:
   
   To redirect errors to a file:
redir -e errors.lst command ...

   To redirect output to a file, and errors through a pipe:
redir -eo -o prog.out command ... | pipe