Looping through lines in a file in bash, without using stdin

Question

I am foxed by the following situation.

I have a file list.txt that I want to run through line by line, in a loop, in bash. A typical line in list.txt has spaces in.

Answer 1

As an alternative, you can read from stderr, which by default is connected to the tty as well. The following then also includes a test for that assumption:

(
tty -s <& 2|| exit 1
while read -r line; do
    echo "$line"
    echo 'Hit enter'
    read x <& 2
done < file
)