title: how to print all key and one of the values from json using jq
body: <p>I have a test.json file and I want to print:</p>
  <pre><code>prob1, 9
  prob2, 10
  prob3, 11
  
  cat test.json | jq --raw-output '.[].abc'
  </code></pre>
  <p>return 9,10,11 but I am not sure how to print keys as well.</p>
  <pre><code>{
     &quot;prob1&quot;:{
        &quot;abc&quot;:9,
        &quot;abcd&quot;:2,
        &quot;Foo&quot;:3
     },
     &quot;prob2&quot;:{
        &quot;abc&quot;:10,
        &quot;abcd&quot;:2,
        &quot;Foo&quot;:3
     },
     &quot;prob3&quot;:{
        &quot;abc&quot;:11,
        &quot;abcd&quot;:2,
        &quot;Foo&quot;:3
     }
  }
  </code></pre>