====Download ==== 
  wget -c http://...

-t0 : nombre de tentatives (0 = infini)
-c : reprend téléchargement interrompu

====How to download a list of URLs using more than one process (say wget) at the time?====

First, create a file with URLs – one URL per line. Let’s call the file url.txt. 

Then we need to create N wget processes, each downloading one URL at the time. Thanks to xargs it is trivial:

  cat url.txt | xargs -n 1 -P 10 wget

-n 1 will make xargs run command (wget) with only one argument at the time
-P 10 will create 10 parallel processes

====Download from youtube====

  python yt-dlp -x --split-chapters https://...

  youtube-dl -ciw --playlist-items 60-515 --extract-audio --audio-format mp3 --restrict-filenames https://...
  
==== Others ====