I have upgraded my ubuntu to the latest 18.04 version and now my manual set shortcuts for some symbols on the keyboard are not working any more.
Usually I was doing it by executing the following command:
xmodmap -e "keycode 15 = 6 ampersand 6 asciicircum bar fiveeighths"
But after the upgrade, this doesn't work any more. By pressing alt+key 6 I am not getting the "and" sign as I should.
Is xmodmap not available any more? Is there some other solution?
Yes, indeed. Xmodmap is no longer supported in gnome. Pleas install gnome tweak tools where you could adjust your keyboard mapping in a gui.