CDH on VM's 26th Video

when it comes to the 26th video of cdh on vm’s
i am using cygwin as suggested but the video used mac and i didnt get how to get git in cygwin and also in the later part using hadoop and training directories …i dont have all of those and not able to follow.Pl needed help on this.
In specific where did you get 04install_setup and from there i have no idea and i am struck there.Pl help.
I appreciate the response
Thank you …You are really an awesome trainer i have witnesses!!@itversity