I don't understand what are you talking about. In almost every linux terminal you can scroll with PageUp/Down and with mouse on most X ones(ex.: rxvt, xfce-term

I don't understand what are you talking about. In almost every linux terminal you can scroll with PageUp/Down and with mouse on most X ones(ex.: rxvt, xfce-terminal). In tmux one can press ctrl+b -> PageUp and scroll with keyboard or mouse. edit: corrected hotkeys