Tluk is an open source script that empowers users to take screenshots of their desktop environment and upload them to the tluk.ru image hosting service.
To install this script, download the file and put it in any directory. Register online (optional, but recommended) on tluk.ru, open the file with a text editor, and enter your user name and password within the quotes (if you did not register, do not change anything)
username = 'username'
userpass = 'password'
Save the file and make it executable. Now double click it to grab a screenshot of the desktop and upload it to tluk.ru.