1) eg. netbeans-6.9.1-ml-php-linux.sh (netbeans with php pack)
2) eg. chmod +x netbeans-6.9.1-ml-php-linux.sh (set executable permission).
3) eg. sudo ./netbeans-6.9.1-ml-php-linux.sh (execute as root and Graphical Installation will commence)
To uninstall, run the uninstall.sh
sudo ./uninstall.sh