Riccardo Maria Bianchi PhD, Particle Physicist

How to install the Qt 5 framework on an Ubuntu Linux machine

wget http://download.qt.io/official_releases/qt/5.11/5.11.2/qt-opensource-linux-x64-5.11.2.run
chmod u+x qt-opensource-linux-x64-5.11.2.run
./qt-opensource-linux-x64-5.11.2.run

When installing the Open Source version of Qt, when you get a window asking for a Qt account, you can skip it by clicking on the Skip button.