I make a get request to a public API via the unix shell. Then I select a specific string value pair. This works perfectly, however I am unable to assign it to a variable called max_temperature.
Can someone help?
response="$(curl $url)"
max_temperature=$response | jq '.["main"].temp_max'
The line
max_temperature=$response | jq '.["main"].temp_max'
will cause the max_temparature var to be set to the contents of $response and pipe the output of this statement (in this case no output) to jq.
What you probably want is:
max_temperature=$(echo $response | jq '.["main"].temp_max')
This spawns a subshell and executes
echo $response | jq '.["main"].temp_max'
in it.
However, since a subshell does not take its parents environment with it by default, $response will be empty when it is echoed. You will need to export it in the line before. Hence:
response="$(curl $url)"
export response
max_temperature=$(echo $response | jq '.["main"].temp_max')
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