install all the packages in cygwin

cygwin_setup.txt

# Install all the packages required for using ruby on rails in cygwin
# Cygwin is a Linux-like environment for MS Windows.

# Download the Cygwin setup.exe from http://www.cygwin.com/setup.exe

# Few packages name and description
# inetutils  # telnet(1)
# ncurses    # see Terminator FAQ
# openssh    # SSH (client and server, though the server's not so great)
# ruby       # run Perl, Python, or Ruby scripts
# vim        # edit stuff locally
# ...
# If you want to install more packages, head to this url http://www.cygwin.com/packages/

# You can update your installation using "unattended" mode with -q
# Cygwin 1.7's setup.exe introduces a -P switch which takes a list of extra packages. Setup needs to be run from a cmd window, not from bash. Drag the shortcut to setup.exe from your Desktop into the cmd window.

# install all the packages in cygwin
cd path/to/downloads/cygwin
setup.exe -q -P cron,gcc,gcc-g++,inetutils,make,mingw-runtime,ncurses,openssh,patch,ruby,rxvt,subversion,vim,make,automake,git,git-completion,gitk,openssh,ping,openssl,openssl-devel,sqlite,nano,ImageMagick,libmagick-devel,curl,mingw64-i686-gcc-g++,readline,libreadline7,zlib-devel,mintty,zsh

# install apt-cyg http://code.google.com/p/apt-cyg/
svn --force export http://apt-cyg.googlecode.com/svn/trunk/ /bin/
chmod +x /bin/apt-cyg
apt-cyg install nano

# install rvm https://rvm.beginrescueend.com/rvm/install/
bash < <(curl -ks https://rvm.beginrescueend.com/install/rvm)
rvm install 1.9.2
rvm use --default 1.9.2

# download latest rubygems

# Install RubyGems 1.8.6
wget http://production.cf.rubygems.org/rubygems/rubygems-1.8.6.tgz
tar xzf rubygems-1.8.6.tgz
cd rubygems-1.8.6
ruby setup.rb
# If you get an error like “No such file to load — rubygems (LoadError)”, all you need to do is run this commented line and run the following from the command line: use the next unset RUBYOPT cmd
# unset RUBYOPT
cd ..
rm -rf rubygems-1.8.6*

# To verify, just run gem -v and it should show you the version 1.8.6

gem install bundler rails

# create new rails project and test it
rails new test_site
cd test_site
bundle install
rails server

# and open http://localhost:3000 on your browser

# Terminal, alternative to unix bash terminal for windows
# install console2 http://sourceforge.net/projects/console/
# Go to “Settings > Tabs” and click “Add”.  You can name the tab anything you’d like (“Cygwin” works just fine).  The only thing to do is set the “shell” parameter to:
c:\cygwin\bin\bash --login -i