First of all, download the Skype package for Debian system from its official download page. You can also use below command to download latest available Debian package.linux
$ wget https://repo.skype.com/latest/skypeforlinux-64.deb
Use the following command to install downloaded skype package on your Ubuntu system.spa
$ sudo dpkg -i skypeforlinux-64.deb
In the case of above command failed to install package due to any dependency run below command.ci
$ sudo apt-get install -f
Use your dashboard skype button to start skype on your system, or you can use the following command as well.get
$ skypeforlinux
With the fist time it will prompt for accepting agreement, Click on I agree.it