#For Ubuntu the correct method to remove packages through the console is:
apt-get –-purge remove skypeforlinux.
dpkg –-remove skypeforlinux.
dpkg –r packagename.deb.
apt-get clean && apt-get autoremove. sudo apt-get -f install. ...
#apt-get update. #dpkg –-configure -a. ...
apt-get -u dist-upgrade.
apt-get remove –dry-run packagename.
1. To install a .deb file, simply Right click on the .deb file, and choose Kubuntu Package Menu->Install Package.
2. Alternatively, you can also install a .deb file by opening a terminal and typing:
sudo dpkg -i package_file.deb
3. To uninstall a .deb file, remove it using Adept, or type:
sudo apt-get remove package_name