Corrail, go to our home page. Then go to "Answers to Frequently Asked Questions". In there are articles that answer every question that you have asked. You might want to start with:
Unix environments for MS Windows
Unix Tutorials/Programming Tutorials/Shell Scripting Tutorials
The last one has links to a lot of tutorials to get you started. Also, please be sure that you have read our rules. Take a look at rule number 5 and please expend some effort attempting to follow it. Thanks.