DW 1L "08 April 1991"

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DW 1L "08 April 1991"


dw - find duplicate words


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.


awk(1), lex(1).


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>