     DW(1L)                                                               DW(1L)
                                    08 April 1991

     NAME
          dw - find duplicate words

     SYNOPSIS
          dw < infile >outfile

          dw filters its standard input, printing on standard output only those
          words which appear twice in succession.  Each word is prefixed by its
          line number(s).

          A word starts with a letter or underscore, and is followed by zero or
          more letters, underscores, or digits.  Letter case is ignored.

          This is a handy tool for finding a common typographical error in
          documentation.

          Its other purpose is to demonstrate a reasonably short lex(1) program.

     SEE ALSO
          awk(1), lex(1).

     AUTHOR
          Nelson H. F. Beebe, Ph.D.
          Center for Scientific Computing
          Department of Mathematics
          South Physics Building
          University of Utah
          Salt Lake City, UT 84112
          Tel: (801) 581-5254
          FAX: (801) 581-4148
          Email: <beebe@science.utah.edu>

                                        - 1 -          Formatted:  July 27, 2000