Youtube-DL script 1.1

#!/bin/sh
YTUSR=youtubechannelnamehere
LOG=output.log
echo "****** $(date -R) ******" >> $LOG
echo "****** $(uptime) ******" >> $LOG
youtube-dl --download-archive "filelist.txt" -ciw --no-progress --write-thumbnail --write-description -f bestvideo[ext=mp4]+bestaudio[ext=m4a]/mp4/best ytuser:$YTUSR -o "%(upload_date)s.%(title)s.%(ext)s" --restrict-filenames >> $LOG
echo "****** $(date -R) ******" >> $LOG
echo "****** $(uptime) ******" >> $LOG