I have a 1600 x 900 HP G72 laptop with HDMI output for 2nd monitor. My 2nd monitor is 1920 x 1080 Samsung LCD positioned to the immediate left of the laptop with the bottom of the screen about an inch or so higher than the bottom of the laptop screen.

I am using ARandR to adjust the positions.

All works well but I have to reset the positioning every time I reboot.

I can save the layout as a .sh file;

Code:
#!/bin/sh
xrandr --output LVDS-1 --primary --mode 1600x900 --pos 1920x180 --rotate normal --output VGA-1 --off --output HDMI-1 --mode 1920x1080 --pos 0x0 --rotate normal --output DP-1 --off
How can I get this layout to be automatically adopted by the system every time it boots?