The standard devices the input and output from a program read from and write
to may be redirected on the command line.  A full explanation of this concept
is described in the help file REDIRECT.  The piping feature of DOS allows
you to direct the standard output of one program to be used by another,
effectively chaining a series of programs together as a single command.
Does this sound confusing?  It really isn't that bad.  Each program to be
chained together is separated by an OR bar "|".  The examples below should
clarify things for you.

DIR |SORT - This causes the output from the DIR command to be sent to the SORT
            command and the results to be displayed on the console.

DIR |FIND "8-30-84" |SORT >PRN
          - The output from the DIR command is sent to the FIND command.  Each
            line that contains the time stamp 8-30-84 is sent to the SORT
            command, and the sorted listing of files updated on that date is
            sent to the printer. See the help file REDIRECT for information
            about the ">" redirection command.

WARNING ** The output from each program is stored by DOS in a temporary file
in the root directory of the default disk, so there should be some space on
the disk for these files.
