center-current-window.bash

#!/bin/bash

# Based on https://askubuntu.com/a/571711/415750

function main {
	local screen_width screen_height WIDTH HEIGHT new_pos_x new_pos_y
	read screen_width screen_height < <(xdotool getactivewindow getdisplaygeometry)
	eval "$(xdotool getactivewindow getwindowgeometry --shell | grep -e WIDTH= -e HEIGHT=)"
	new_pos_x=$(( screen_width / 2 - WIDTH / 2 ))
	new_pos_y=$(( screen_height / 2 - HEIGHT / 2 ))
	xdotool getactivewindow windowmove "${new_pos_x}" "${new_pos_y}"
}

main