How shell(bash) retrieves multiple values from the JSON string and substitutes them into environment variables

I'd like to get multiple values from the following JSON string and substitute them into the environment variable.
It didn't work.

Shell didn't work as expected

json_string='{"name":"John", "age":30, "city":"New York"}'
read name age<<<$(echo$json_string | jq-r'.name, .age')
echo$name
echo$age

Run Results

(venv)xx@xxxx$
(venv)xx@xxxx$json_string = '{ "name" : "John", "age" : 30, "city" : "New York" }'
(venv)xx@xxxx$read name age<<$(echo$json_string | jq-r'.name, .age')
(venv)xx@xxxx$echo$name
John
(venv)xx@xxxx$echo$age

(venv)xx@xxxx$

John
to $name $ange to 30
How do I store the ?

bash shell

2023-02-23 20:42

1 Answers

For example, use xargs.

$read name age<<$(echo "$json_string" | jq-r'.name, .age' | xargs)
$ echo$name
John
$ echo$age
30

Alternatively, you can do join() within the jq command.

$read name age<<$(echo "$json_string"|jq-r'[.name, .age]|join("")')
$ echo$name
John
$ echo$age
30

2023-02-23 22:47

If you have any answers or tips

Popular Tags

python x 4647

android x 1593

java x 1494

javascript x 1427

c x 927

c++ x 878

ruby-on-rails x 696

php x 692

python3 x 685

html x 656