ref: 3d4573f3902988f399aaccd0cbc618efd3b1634c
dir: /bin/rescale/
#!/bin/rc
echo $vgasize | awk -Fx -v 'w='$1 -v 'h='$2 '
{
dx = $1 / w
dy = $2 / h
scale = int(dy < dx ? dy : dx)
if(scale * w == $1 || scale * h == $2)
scale--
print "resize -dx", scale * w + 8, "-dy", scale * h + 8 >"/dev/wctl"
}'