[ArkPhaze]

Code:

if '%pass%' == 'world' goto correct goto fail

Here I would check if it's not 'world' then goto :fail if it's not, otherwise it will avoid that check and goto :corrrect anyways, so there's no need for goto :correct in there.

Rest of the tutorial is okay... Other than here:

Code:

echo hello world > new.txt ::append to a file echo hello world >> new.txt

Where it should be mentioned that paths with spaces should be wrapped in quotes.