excuse my bad english:

This is the situation; I make my own IPTV lists taking the URLs of free sites and passing them to the smart tv, I would like to know which urls work and which ones don't to replace them, and doing it manually is an impossible task, I found the snap bash script to delete old snaps fantastic from the terminal with a single command, something like this would work for me, but OBVIOUSLY I don't know anything about scripts, bash or programming, if you could help me with a bash script that checks all the URLs of a .txt document in the terminal indicating which ones are up and which ones down I would appreciate very much, that would save me a lot of time, I appreciate your help in advance!