Create offline apt package to install on Linux system without internet access

offline_package.sh

# Reference: https://stackoverflow.com/questions/22008193/how-to-list-download-the-recursive-dependencies-of-a-debian-package

# download the dependencies into a directory
apt-get download $(apt-cache depends --recurse --no-recommends --no-suggests --no-conflicts --no-breaks --no-replaces --no-enhances <your-package-here> | grep "^\w" | sort -u)

# package them
dpkg-scanpackages . | gzip -9c > Packages.gz

# copy all downloaded *.deb and Packages.gz from previous step to your target machine
# create deb on target system without internet access
echo "deb [allow-insecure=yes] file:<your folder here> ./" | sudo tee -a /etc/apt/sources.list

# update repository
sudo apt-get update

# install the package you downloaded
sudo apt-get install <your-package-here>