Bash Read a file (data stream, variable) line-by-line (and/or field-by-field)? Looping through a string line by line
Example
var='line 1
line 2
line3'
while IFS= read -r line; do
echo "-$line-"
done <<< "$var"
or
readarray -t arr <<< "$var"
for i in "${arr[@]}";do
echo "-$i-"
done
