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*                             UNIQUE                                 *
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*                  COPYRIGHT 1983 EUGENE H. MALLORY                  *
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PROGRAM:
    UNIQUE - Finds unique lines in a sorted file.
USAGE:
    UNIQUE [<fid] [-U] [-C] [-L] [-S] [-D] [-N] [-H] [>fid]
FUNCTION:
    This program finds and displays unique or duplicated lines in
    a sorted file.  The default usage is to remove extra duplicated
    lines from a sorted list.  
    Input and output are the standard redirectable input and
    output.  Options include:
    
    -U   Convert to upper case before comparing.
    -C   First column to begin compare. 1 is default.
         It is ok to specify a position longer than some
         lines.  Lines shorter will compare as equal.
    -L   Length of field to compare.  Full line length is default.
    -S   Display only unique lines.
    -D   Display only duplicated lines
    -N   Prefix each line with the number of duplicates found.
         1 for single lines, 2 for double lines, etc.
    -H   Display the available options.
    
EXAMPLE:
    SORT <A -C10 -L10 -R |UNIQUE -C10 -L10
    LS *.* |UNIQUE -D   {Finds duplicate named files}
    WORDS <FILE |SORT |UNIQUE -N |SORT  {Gives word list by frequency}

        Command Line                       

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                                  |  
                                  |  
                                  |  OPTIONS
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                                  |                  
                    ______________V______________    
 Standard Input     |                           |   Standard Output
     TEXT           |                           |    SELECTED TEXT
------------------->|          UNIQUE           |----------------------->
                    |                           |
                    |                           |
                    |___________________________|
