#!/bin/bashW3MIMGDISPLAY="/usr/lib/w3m/w3mimgdisplay"FONTH=18# Size of one terminal rowFONTW=9# Size of one terminal columnX=$1Y=$2COLUMNS=$3LINES=$4x=$((FONTW*X))y=$((FONTH*Y))erase="6;$x;$y;$((FONTW*COLUMNS));$((FONTH*LINES))\n3;"echo-e"$erase"|$W3MIMGDISPLAY