**********************************************************************
*                               SUM                                  *
**********************************************************************
*                  COPYRIGHT 1983 EUGENE H. MALLORY                  *
**********************************************************************
PROGRAM:
      SUM   - Sums a given field in a set of lines.
USAGE:
      SUM   [<fid] [-Fn] [-Cn] [-H] [>fid]
FUNCTION:
    This gets each line and sums the specified field.
    
    The -Fn option may specify the n'th numeric field
    in the line.  The default is field 1.
    
    The -Cn may specify the first column to begin the search.
    The default is column 1.
    
    A numeric field is a string of one or more decimal digits
    which may pe preceded by a minus sign.  Numeric fields are
    seperate# by any non-numeric character.
    Lines with no numbers or too short will be skipped.
    
    The -H option displays the available options.
    
EXAMPLE:
    SUM <NUMBERS -C8 -F2	{Sums the second numeric field 
				following column 8.}

        Command Line                       

___________________________________  
                                  |  
                                  |  
                                  |  OPTIONS
                                  |  
                                  |                  
                    ______________V______________    
 Standard Input     |                           |   Standard Output
     TEXT           |                           |        SUM
------------------->|            SUM            |----------------------->
                    |                           |
                    |                           |
                    |___________________________|