Cleaning up file names with paste, mv and/or sed?

Been a while since I've been on here. So I have a poorly labeled file collection. A friend wanted to see what I had so i

:~/ ls ~/files/ > badfiles.txt

They reviewed and edited the file names and sent it back as goodfiles.txt. Now both files correspond line by line but there are no patterns to the editing.

badfiles.txt          goodfiles.txt
  FILE NAME1.XXX        file name 1
  file_name 2.YYY       file name 2
  file.name3.XXX        file name 3
  filename(4).ZZZ       file name 4

So I ideally want to rename the files but using badfiles.txt as input and goodfiles.txt as output.

I tried this with unintended results

while read -r a b; do ! [[ -e "$b" ]] && mv "$a" "$b"; done <<< "$(paste badfiles.txt goodfiles.txt)"

and

paste badfiles.txt goodfiles.txt | while read n k; do mv -T $n* $k; done

and several variations of the above. The goodfiles.txt has been stripped of extensions as well so is it possible to preserve them during the renaming?

Try parameter substitution to get the extensions

paste badfiles.txt goodfiles.txt | while read n k ; do ext=${n##*.} ; mv $n $k.$ext ; done

You're going to have to escape the spaces goodfiles.txt first - something like this might do it

sed 's/ /\\ /g' goodfiles.txt

(presumes no extranious blanks - especially at end of line)

Thank you for the reply! I knew I had the right utilities, just wasn't sure how to define the variables as needed.

Now do I need to escape anything else? Specifically, some names include ? & ( ) ' ; , -

So escaping everything came up with some errors..

sed '
s/[/\\[/g
s/]/\\]/g
s/-/\\-/g
s/&/\\&/g
s/{/\\{/g
s/}/\\}/g
s/(/\\(/g
s/)/\\)/g
s/;/\\;/g
s/ /\\ /g'
<../badfiles.txt >../newbadfiles.txt

I checked the output and the whitespace was escaped.

I was testing this with:

$ paste ../newbadfiles.txt | while read n ; do touch $n ; done

The output was each string was made into a file even with escaped characters. I then tried with double quotes

's/.*/"&"/'

Touch still manages to split the file at the whitespace and some special characters.