Sending keys to Linux’ programs

Source: http://www.semicomplete.com/projects/xdotool/

#apt-get install xdotool

#Send a Ctrl+P to Google Earth -> “File -> Print”

WID=`xdotool search “Google Earth” | head -1`
xdotool windowactivate $WID
xdotool key ctrl+p

#Copy Google Earth current view image to clipboard

WID=`xdotool search “Google Earth” | head -1`
xdotool windowactivate $WID
xdotool key ctrl+alt+c

And so on….there are several other possibilities described in the mentioned page.