Return values from bash functions

return.sh

return_value()
{
	local _variable_="${!1}"
	local _other_="other value"

	# Make a default value if the variable passed was empty
	if [ -z "$_variable_" ]; then
		_variable_="default"
	fi

	# Return variable
	if [ -n "$1" ]; then
		eval "$1="$_variable_""
	fi

	# Return other
	if [ -n "$2" ]; then
		eval "$2="$_other_""
	fi
}

variable=
return_value variable other

echo "$variable"
echo "$other"