cygwin

I am an absolute newbie to cygwin. i downloaded the cygwin zip file, tried to install it.

i get the command line interface, but it has got nothing else, no grep, no man. i think i need to install something else, before it becomes a proper unix like environment.

please tell me what to do?

I believe that the default for Cygwin only installs minimal packages. Read the Cygwin FAQ for details on how to install further packages.