title: jq read .txt file and write the values to json file
body: <p>I want to use <code>jq</code> to parse a <code>.txt</code> file with a list of country codes and write them to the value in a JSON object.</p>
  
  <p>Here is what I have so far:</p>
  
  <pre><code>cat myfile.json | 
  jq -R -f test_id.txt 'select(.country == []).country = "test_id.txt"' &gt; newfile.json
  </code></pre>
  
  <p>Where <code>.txt</code> file looks like this:</p>
  
  <pre><code>"NSC"
  "KZC"
  "KCC"
  "KZL"
  "NZG"
  "VRU"
  "ESM"
  "KZF"
  "SFU"
  "EWF"
  "KQY"
  "KQV"
  </code></pre>
  
  <p>and my JSON looks like this:</p>
  
  <pre><code>{
    "scsRequestId": null,
    "includeMetadata": true,
    "includeHoldings": true,
    "country": [],
    "region": [],
    "oclcSymbol": []
  }
  </code></pre>
  
  <p>Here is the error I am getting:</p>
  
  <pre><code>jq: error: syntax error, unexpected QQSTRING_START, expecting $end (Unix shell quoting issues?) at &lt;top-level&gt;, line 2:
  "KZC"
  jq: 1 compile error
  </code></pre>
  
  <p>I want the list of country codes to go into the country array.</p>