Shell读取ini文件

while IFS='= ' read var val
do
    if [[ $var == [*] ]]
    then
        section=$(echo $var | sed 's/^[(.*)]$/1/')
    elif [[ $val ]]
    then
        if [ -z $section ];then
            declare "${var}=$val"
        else
            declare "${section}.${var}=$val"
        fi
    fi
done < config.ini