Read a file line by line assigning the value to a variable

Question

I have the following .txt file:

Marco
Paolo
Antonio

I want to read it line-by-line, and for each

Answer 1

For proper error handling:

#!/bin/bash

set -Ee    
trap "echo error" EXIT    
test -e ${FILENAME} || exit
while read -r line
do
    echo ${line}
done < ${FILENAME}