Bitcoin-qt Ubuntu ppa

Bitcoin-Qt is the third Bitcoin client, developed by Wladimir J. van der Laan based on the original reference code by Satoshi Nakamoto.
It has been bundled with bitcoind since version 0.5. It is used to store you bitcoins on you computer with encryption for security.
You must have a wallet for mining bitcoins, eather a web based one or one on your computer for keeping your bitcoins in.
Web based wallets are free like this one hosted by Block Chain.

If you wish to install a wallet on your computer for what ever reasons you may have, its very easily done with the following commands.
Features
• Compatibility with Linux (both GNOME and KDE), Mac OS X and Windows
• All functionality of the original wxWidgets client
• Asks for confirmation before sending coins
• CSV export of transactions
• Clearer transaction list with status icons and real-time filtering
• Progress bar on initial block download
• Languages: Dutch, English, German, many more
• Sendmany support in UI (send to multiple recipients in one transaction)
• Multiple unit support, can show subdivided bitcoins (mBTC, µBTC) for users that like large numbers (only decimal units)
• Splash screen that details progress

1. Add the repositroy

Use the following to add the repository to your system.

$ sudo apt-add-repository ppa:bitcoin/bitcoin

2. Update

3. Install

$ sudo apt-get install bitcoin-qtSearch for bitcoin on your system to start it.

Congratulations! you have installed Bitcoin-QT in Ubuntu