CODEWITHSUNDEEP
bashselectfilterargumentsjq
ChristianWohlgemuth
ChristianWohlgemuth

Reputation: 11

JQ select and passing arguments

I am trying to passing variables to JQ but the following code is not working as expected:

echo '{
   "app": "K8s",
   "version": "1.8",
   "date": "2018-10-10"
}' | jq --arg app 'K8s' -c 'select(.app == [$app]).version'

However, following example works:

echo '{
   "app": "K8s",
   "version": "1.8",
   "date": "2018-10-10"
}' | jq -r --arg app app 'select(.[$app] == "K8s").version'

why the first example is not working?

Thanks

Upvotes: 0

Views: 90

Answers (1)

peak
peak

Reputation: 116870

In the first example, [$app] is wrong: this expression produces an array. The jq program should be:

select(.app == $app).version

Upvotes: 1

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