Здравствуйте, SmK, Вы писали:

SmK>Что такое bash-hella ?

bash-shell... он букву пропустил.

SmK>Что такое cygwin ?

http://www.cygwin.com/

Cygwin is a Linux-like environment for Windows. It consists of two parts:

• A DLL (cygwin1.dll) which acts as a Linux API emulation layer providing substantial Linux API functionality.
  
• A collection of tools, which provide Linux look and feel.

The Cygwin DLL works with all non-beta, non "release candidate", ix86 32 bit versions of Windows since Windows 95, with the exception of Windows CE.

SmK>И самое главное, где их взять ?

В инете.