Just follow my answer here and you're set... https://askubuntu.com/q/984425 given you use a 64 bit system.
– VideonauthDec 11 '17 at 13:47
i dont wont install or re-install, I wonna make an upgrade 1 action in the terminal
– ultimatumDec 11 '17 at 14:17
@ultimatum: Jokes aside, please have a look at the top answer of the linked question. The "upgrade" is literally 3 shell commands if you want to use the terminal and don't have the Skype repository added to Apt (which Skype 5 should have done for you). DPKG (and thus Apt) doesn't distinguish between package upgrades and re-installations.
– David FoersterDec 11 '17 at 14:41
Beside installing the new Skype with the method i described sets it up for normal updates.
– VideonauthDec 11 '17 at 14:44
sudo apt-get -y remove skypeforlinux --purge && wget https://repo.skype.com/latest/skypeforlinux-64.deb && sudo dpkg -i skypeforlin*.deb
its work
– ultimatum Dec 11 '17 at 15:33