The Pinguy OS 12.04 widget on the right of the screen is called Conky. It gives usefull info, such as CPU usage or RAM usage, but after a while, it gets annoying.
This is how I got rid of it, from the command line interface.
To kill conky, use killall conky:
$ killall -9 conky
Add killall conky to your user’s ~/.bashrc file, to get conky killed when you login:
echo 'killall conky' >> ~/.bashrc
Because I sometimes need it to see my CPU usage or network activity, I created this alias to open conky:
$ alias conky='nohup conky &> /dev/null &'
So, when I type conky, I get a demonized conky. Conky runs in background, independent from the terminal, without giving any output.
To make the alias persistent, add it in the ~/.bashrc file:
$ echo "alias conky='nohup conky &> /dev/null &'" >> ~/.bashrc
For killing conky, I have created this alias:
$ alias killconky='killall -9 conky'
To make the killconky alias persistent, add it to ~/.bashrc:
$ echo "alias killconky='killall -9 conky'" >> ~/.bashrc
So, conky gets killed at login, I type conky to open it and type killconky to kill it.