https://stackoverflow.com/questions/13756800/how-to-download-all-dependencies-and-packages-to-directory
PACKAGES="wget unzip"
apt-get download $(apt-cache depends --recurse --no-recommends --no-suggests \
--no-conflicts --no-breaks --no-replaces --no-enhances \
--no-pre-depends ${PACKAGES} | grep "^\w")
This only works if you do not have the package or its dependencies installed locally. –
# aptitude clean
# aptitude --download-only install <your_package_here>
# cp /var/cache/apt/archives/*.deb <your_directory_here>