1.Go to the Adobe Air download page, and download the latest .bin file. (AdobeAIRInstaller.bin). Save the downloaded file in your Home folder. Next, run this command from Terminal:
Now Run This Command :
chmod +x AdobeAIRInstaller.bin
Follow the instructions and quite quickly you’ll end up seeing installation finish screen.
2.Install The TweetDeck
Go to the Tweetdeck site, and scroll down to the “Download TweetDeck beta for Linux (manual installation)” section.
Click the “TweetDeck AIR file” link and open with Adobe Air
After Click Install You'll See Welcome Screen.
And Finally,TweetDeck installed on Your Ubuntu :)