#!/bin/bash
set -x
/usr/local/bin/youtube-dl --newline -f 18 "${1}" 2>&1 | /usr/bin/stdbuf -i0 -o0 -e0 cut -c 11-14 | while read x
do /usr/bin/stdbuf -i0 -o0 -e0 printf "%3d%% .................................................................................................... \r\n" ${x}
 done