xmodmap -e "keycode 64 = Mode_switch"
xmodmap -e "keycode 43 = h H NoSymbol Left"
xmodmap -e "keycode 44 = j J NoSymbol Down"
xmodmap -e "keycode 45 = k K NoSymbol Up"
xmodmap -e "keycode 46 = l L NoSymbol Right"
它可以与Mode_switch + key(xmodmap -e "keycode 43 = h H Left")
组合一起使用,但Mode_switch + shift + key
不起作用。