MinGW and MSYS

Most of us know about MinGW(Minimalist GNU for windows) which uses MS windows runtime libraries to build,link and run C,Cpp programs on win32 platforms(also supports other languages too). It can be used via command prompt or can be integrated into an IDE. I use Eclipse as my IDE and occasionally use Cmd prompt. However, I recently started using MSYS which is a POSIX-like Command line Interpreter similar to Cmd prompt provided by MinGW. I fully liked it as it resembles the Unix type shell environment which was what I was mostly using back in school. It also helps in running different scripts and interprets makefiles too.I am still in process of exploring the tool completely...but u can read more about it on MinGW's site.