As a developer, I tend to either work in a Linux environment (e.g., Ubuntu) or in a Windows environment. In either case, I find that Unix/Linux command line utilities are a necessity for serious software development. In Windows, those tools can be be installed through a package called Cygwin. Cygwin can be found at:
http://cygwin.com/install.html
Install the default packages to begin with, along with all packages relating to the programming languages that you are interested in.