A large collection of GNU and Open Source tools which provide functionality similar to a Linux distribution on Windows.

modify CYGWIN_HOME\Cygwin.bat

@echo off
set CYGWIN_ROOT=D:\cygwin64
set HOME=D:\cygwin_home
set DISPLAY=127.0.0.1:0.0

D:
chdir D:\cygwin64\bin

REM bash --login -i
start D:\cygwin64\bin\mintty.exe -i /Cygwin-Terminal.ico -