You can play around with the parameters to get the behavior you want (there are tons more than I don't use), I kept it pretty simple. In my case it checks the channel page for videos that are newer than 7 days (it runs daily but this gives me a buffer). If there are more than 10 videos newer than 7 days it only checks the first 10. It stores previously downloaded video information in downloaded.txt so it doesn't download duplicate videos, and outputs the video in the format videoName.ext.
Then throw that into a shell script along with any other channels you want and set up a cron job to run it as often as you'd like. You'll also probably want to put 'youtube-dl -U' into a cron job to keep it up to date, YouTube frequently changes things that breaks functionality of youtube-dl.
I never thought to set up something like this, but it's a fantastic idea!
Now... this may seem like a silly question: What does the '--' do before the channel url? I know '--' is normally used for parameters longer than one character, but that one is kinda just floating about haha.
Putting "--" as an argument means that future arguments starting with "-" will not be parsed as arguments (imagine trying to rm a file called "-rf" or grep for "-"). But it just so happens that it's not necessary in this case.
Looks like a mistake on my part, I was probably playing around with another parameter and forgot to remove it completely. It runs fine with it there so I never noticed it but it isn't needed.
youtube-dl --dateafter now-7days --playlist-end 10 --download-archive '/path/to/folder/downloaded.txt' -o '/path/to/folder/%(title)s.%(ext)s' -- 'https://www.youtube.com/channel/UCYO_jab_esuFRV4b17AJtAw'
You can play around with the parameters to get the behavior you want (there are tons more than I don't use), I kept it pretty simple. In my case it checks the channel page for videos that are newer than 7 days (it runs daily but this gives me a buffer). If there are more than 10 videos newer than 7 days it only checks the first 10. It stores previously downloaded video information in downloaded.txt so it doesn't download duplicate videos, and outputs the video in the format videoName.ext.
Then throw that into a shell script along with any other channels you want and set up a cron job to run it as often as you'd like. You'll also probably want to put 'youtube-dl -U' into a cron job to keep it up to date, YouTube frequently changes things that breaks functionality of youtube-dl.