cd /home/web/roundcube
mkdir db temp
chown web:web db temp
wget https://github.com/roundcube/roundcubemail/releases/download/X.Y.X/roundcubemail-X.Y.Z-complete.tar.gz
tar xvf roundcubemail-X.Y.Z-complete.tar.gz
ln -s roundcubemail-X.Y.Z-complete.tar.gz roundcubemail