To install xidle just follow these instructions.
sudo apt-get install xidle
Which will install xidle and any other packages on which it depends.
|Maintainer||Thorsten Glaser <firstname.lastname@example.org>|
|Description||run program after inactivity or edge sensitive inactivity time, or when the mouse cursor is moved to an edge of the screen for a certain time, all of which is configurable. It is commonly used to run xlock.|