There are multiple ways of getting bash on windows, MSYS and Cygwin being two of them. They perform like ass compared to bash on a real unixy operating system,

There are multiple ways of getting bash on windows, MSYS and Cygwin being two of them. They perform like ass compared to bash on a real unixy operating system, because Windows doesn't have fork. Its process creation is already significantly slower even before having to emulate fork/exec semantics, which makes things much much worse. (See: http://stackoverflow.com/a/985374/341371 http://stackoverflow.com/a/985374/341371 )