Script to synchronize all youtube playlists to a disk

youtube-playlists.sh

#/usr/bin/bash

OLDIFS=$IFS
IFS=$'\n'

NR_MAX_JOBS=4

#https://stackoverflow.com/questions/1537956/bash-limit-the-number-of-concurrent-jobs
waitforjobs() {
    while test $(jobs -p | wc -w) -ge "$1"; do wait -n; done
}

for line in $(grep "playlist?list" playlists.html); do
   name=$(echo $line | cut -d "\"" -f 10);
   list="https://www.youtube.com$(echo $line | cut -d "\"" -f 12)";

   waitforjobs $NR_MAX_JOBS

   {
     echo $name;
     mkdir -p "$name"
     cd "$name"
     youtube-dl -f bestvideo+bestaudio -i "$list"
     cd ..
   } &
done

IFS=$OLDIFS