sudo apt update get a warning issue with PPA Skype
116348
Why isn't apt full-upgrade getting an updated software key signature for skype
27769
Problem with IPv6 sudo apt-get update/upgrade
151465
How do I install Skype or Viber on Ubuntu Touch?
13744
sudo apt-get update failing - "could not open" list file due to "permission denied"
47843
Upgraded to Chrome 61.0.3163 via ppa on Ubuntu 16.04 but it won't launch because NSS out of date
41948
warning message at command line `sudo`
96145
Cannot Add PPA Behind Proxy Ubuntu 14.04
131566
"Problem with Audio Playback" on Skype
116035
Interrupting apt-get dist-upgrade: what could happen?
44313
How to run "sudo apt-get update" through proxy in commandline?
104335
Why doesn't LD_PRELOAD "v4l1compat.so" work with 64-bit Skype?
107786
PPA error while installing Albert application launcher in Ubuntu 18.04
65523
installing 32-bit version of Skype on Ubuntu 16.04
96189
Migrating from Skype 4.2 to 4.3 on Ubuntu
153837
Skype on Ubuntu 18.04 issues - doesn't start and logs me out
120695
How to disable the skype ads (advertisement)?
138776
How to start Skype 4 with Ubuntu 12.10?