How to read a line from each of several files in each iteration of a single loop?

Question

I need to read from multiple file in one loop. I have one file with X coords, one file with Y coords and one file with chars on those coords.

For now I use pas

Answer 1

I'm not sure how to do it without paste, but you can avoid cut assigning all variables in one read:

while read -r X Y CHAR; do
    echo "X = $X; Y = $Y; CHAR = $CHAR";
done < "$file"