Cygwin package management
From wikinotes
Cygwin doesn't ship with a package manager.
Instead, you call the installer with params to install packages (or use the GUI).
Documentation
std cygwin packages http://lug.mtu.edu cygports packages http://mirrors.kernel.org/sources.redhat.com/cygwinports/
Usage
# start cygwin with GPG key for cygports /path/to/setup-x86.exe -K http://cygwinports.org/ports.gpg # install packages setup-x86.exe -q -P vim,bc,git,xorg,nc