将 mysql 输出解析为 bash 变量被空格破坏

Question

I want to read all rows in a table and put them in individual variables in bash, but I'm having a problem when the cell entries have white spaces in them:

while read id name neighbourhood city
do
        echo "ID: $id"
        echo "name: $name"
        echo "neighbourhood: $neighbourhood"
        echo "city: $city"
        echo -e "\n"
done < <(echo "SELECT id, name, neighbourhood_id, city_id FROM households" | mysql -u kong -pHarald city_planner -h 0)

If the name is just a single word it all looks fine, but if it has three individual words separated by white space, it ends up as shown below:

...

ID: 200
name: Durek
neighbourhood: 1
city: 2


ID: 201
name: Kong
neighbourhood: Harald
city: Rex   1   2

...

How can I make the whole name end up in the name variable?

Answer 1

if you only have one string with whitespaces you can put them at the last position

root@localhost:~# while read id neighbourhood city name
> do
>         echo "ID: $id"
>         echo "name: $name"
>         echo "neighbourhood: $neighbourhood"
>         echo "city: $city"
>         echo -e "\n"
> done < <(echo "SELECT id, neighbourhood_id, city_id, name FROM households" | mysql -u root Bernd -N)
ID: 200
name: Durek
neighbourhood: 1
city: 2


ID: 201
name: Kong Harald Rex
neighbourhood: 1
city: 2


root@localhost:~# 

Answer 2

I suggest to use "CONCAT" first and then "IFS" for while loop, like this:

while IFS='@' read -r id name neighbourhood city
do
    echo "ID: $id"
    echo "name: $name"
    echo "neighbourhood: $neighbourhood"
    echo "city: $city"
    echo -e "\n"

done < <( mysql -u kong -pHarald city_planner -h 0 -NBe "SELECT CONCAT(id, '@', name, '@', neighbourhood_id, '@', city_id ) FROM households")