how to install deb file in ubuntu 18.04 code example
Example 1: install deb file
sudo dpkg -i /path/to/deb/file
sudo apt-get install -f
Example 2: instal .deb ubuntu
sudo dpkg -i package_file.deb
Example 3: install *.deb file in ubuntu
Install a downloaded program in Ubuntu - Linux
sudo dpkg -i package_file.deb
//or
sudo apt install path_to_deb_file