keyboard_switch.sh

#!/bin/sh
# This is keyboard layout switcher script for a FreeBSD user.
# When I am using two layouts US to MM on X window managers like XFCE or FVWM,
# I have to run this script but for Gnome, I don't need this.

# to have two layouts of us and mm
setxkbmap -layout us,mm

# to get switch between those two layouts.
setxkbmap -option -option grp:alt_shift_toggle,lv3:win_switch