wget http://download.qt.io/official_releases/online_installers/qt-unified-linux-x64-online.run
sudo apt update
cd ~
chmod u+x qt-unified-linux-x64-online.run
./qt-unified-linux-x64-online.run
wget http://download.qt.io/official_releases/online_installers/qt-unified-linux-x64-online.run
sudo apt update
cd ~
chmod u+x qt-unified-linux-x64-online.run
./qt-unified-linux-x64-online.run