How do I install a .deb file via the command line?
Are you looking for all dpkg commands? click this link to have a read. 15 dpkg commands to Manage Debian based Linux Servers There are two actions, they are dpkg-query and dpkg-deb.
https://askubuntu.com/questions/40779/how-do-i-install-a-deb-file-via-the-command-line