Cygwin's default person interface is definitely the bash shell running within the mintty terminal emulator.[25] The DLL also implements pseudo terminal (pty) devices, and Cygwin ships with quite a few terminal emulators which might be based upon them, which include rxvt/urxvt and xterm. The Model of GCC that includes Cygwin https://acgwin41840.ziblogs.com/37374165/getting-my-acgwin-to-work