Bash - Return value from subscript to parent script

Question

I have two Bash scripts. The parent scripts calls the subscript to perform some actions and return a value. How can I return a value from the subscript to the parent script? Add

Answer 1

Here is another way to return a text value from a child script using a temporary file. Create a tmp file in the parent_script and pass it to the child_script. I prefer this way over parsing output from the script

Parent

#!/bin/bash
# parent_script
text_from_child_script=`/bin/mktemp`
child_script -l $text_from_child_script
value_from_child=`cat $text_from_child_script`
echo "Child value returned \"$value_from_child\""
rm -f $text_from_child_script
exit 0

Child

#!/bin/bash
# child_script
# process -l parm for tmp file

while getopts "l:" OPT
do
    case $OPT in
      l) answer_file="${OPTARG}"
         ;;
    esac
done

read -p "What is your name? " name

echo $name > $answer_file

exit 0