uniq - Windows command-line utility to report or filter out repeated lines in a file
uniq [-c|-d|-u] [-f fields] [-s chars]
[input_file[output_file]]
The uniq(1w) Windows command-line utility is an implementation of the Interix uniq(1) command that you can run at a Windows command prompt. The input_file and output_file arguments must use Windows file-name and path syntax. For more information, see uniq(1).