xmodmap -e "keycode 49 = less greater less greater backslash backslash backslash"
xmodmap -pke | grep superior # keycode 49 = twosuperior threesuperior twosuperior threesuperior notsign notsign notsign
xmodmap -pke | grep greater # keycode 94 = less greater less greater backslash backslash backslash
xmodmap -pke | grep Touch # keycode 199 = XF86TouchpadToggle NoSymbol XF86TouchpadToggle
showkey # Interactive! Might need sudo if it gives the "Couldn't get the file descriptor referring to the console"