English style decimal marks with a European keyboard layout
Suppose you live in Europe where they separate numbers with commas instead of periods.
Six thousand eight hundred and forty three and two tenths
Suppose you also have a European keyboard and use a European keyboard layout but the stupid comma in the numpad drives you mad.
Open (or create) ~/.Xmodmap
Add the line “keycode 91 = KP_Delete KP_Decimal” and save
Run the command “xmodmap ~/.Xmodmap”
Test that it worked
Add the line “xmodmap ~/.Xmodmap” and save to make the change permanent.