How to map middle-click on mouse to left-click.
 

The left click on my mouse has broken, so i would like to use the middle click button in it's place. I can do this on windows with autohotkey, but how can i do it on linux?

(and yes, i have a new mouse on the way.. but it's not here yet)

should give you what you need.

for more. (I think it's installed by default on most systems but if not should be in your repositories.)