apt-cyg
apt-cyg is a Cygwin package manager. It includes a command-line installer for Cygwin which cooperates with Cygwin Setup and uses the same repository. The syntax is similar to apt-get. Usage examples:
apt-cyg install  to install packages
apt-cyg remove  to remove packages
apt-cyg update to update setup.ini
apt-cyg list [pattern(s)] to list packages matching given pattern. If no pattern is given, list all installed packages.
apt-cyg show <pattern(s)> to show packages matching patterns
apt-cyg search  to locate parent packages
Quick start
apt-cyg is a simple script. To install:

then place it in a /bin folder on your path:

mv apt-cyg /bin/apt-cyg

and make it executable:
chmod +x /bin/apt-cyg
Example use of apt-cyg:

apt-cyg install nano