Use Javascript to alter a text file

I am attempting to remove the vowel points from Hebrew language. The following code is successful at removing the vowel points:

function removeVowels(text) {
    return text.replace(/[u0591-u05C7]/g, "");
}

const originalText =
    "אָדָ֛ם בְּצַלְמֵ֖נוּ כִּדְמוּתֵ֑נוּ וְיִרְדּ";

const vowelsRemoved = removeVowels(originalText);

// print out the results

console.log(vowelsRemoved); 

Returning:

אדם בצלמנו כדמותנו וירד

However, I would like to do things differently:

1. Instead of entering the Hebrew into the .js file, I would like this function to change the text of a whole document called ‘hebrew.txt’.
2. Instead of printing the result in terminal, I would like it to overwrite the content of ‘hebrew.txt’, with a console message telling me when it has finished.

Do I need to use fs.writeFile somehow?
Much appreciated.

Edit: If it makes any difference, I am using Linux.