i want to disable right click in nautilus using Ubuntu 12.04. how to do that?
To disable right click for just desktop :
xmodmap -e "pointer = 1 2 99"
To apply for system wide:
xmodmap -e 'pointer = 1 2 0 4 5 6 7 8 9'
If you want to reverse it:
xmodmap -e 'pointer = default'
But, notice that it will restore to defaults upon rebooting.
Now, if you wish to make this option non-volatile do the following:
open dash --> startup Applications --> Add --> fill as in the image below