how to block and unblock websites without any software using cmd

[Mikestzy]

I copied the text and put it on command prompt and then i clicked enter it din't work.

[gabby]

it's 2020 can you help me unblocked a website and also it says it cannot find file..

[diormania]

i removed the websites from the notepad and it still doesnt work, i tried refreshing it but its still stuck on the webpage not available

[france]

it doesn't work:(
I tried refreshing the website, it still doesn't work, and i tried to save it, it said "you don't have permission to save in this location. Contact the administor to obtain permission. Would you like the save in the documents folder instead?

HELP ME PLEASE, I PAID MANY MONEY ON THAT GAME