Howto dpkg
==========
https://www.tecmint.com/dpkg-command-examples/
1. Install packages
dpkg -i package
2. List packages
dpkg -l package*
3. Remove packages
dpkg -r package
4. View the Content of a Package
dpkg -c flashplugin-nonfree_3.2_i386.deb
5. Check a Package is installed or not
dpkg -s flashplugin-nonfree
6. Check the location of Packages installed
dpkg -L flashplugin-nonfree
7. Install all Packages from a Directory
dpkg -R --install debpackages/
8. Unpack the Package but dont’ Configure
dpkg --unpack flashplugin-nonfree_3.2_i386.deb
9. Reconfigure a Unpacked Package
dpkg --configure flashplugin-nonfree