This is a bash script for obtaining dependencies, downloading, and installing from source bitcoind and bitcoin-qt (bitcoin core) on Ubuntu 12.04 ONLY. May or may not work on any other platform.
Use -u flag to compile without UPNP support. To specify QT version use -q flag and vesion number (only QT4 and QT5 is supported). Default QT version is 4. Bitcoin folder will be created on the folder where this script is run from."
based on instruction : https://github.com/bitcoin/bitcoin/blob/master/doc/build-unix.md