title: How to upgrade the Qt version through the command line?
body: <p>I currently have QT version 5.9 on Linux Ubuntu 18.04 but I need at least QT version 5.10 in order to have certain functionality. Is there a way to upgrade through command line or should I just re-download from the website? If I do re-download from the website will I still have the 5.9 version?</p>