title: Using variable when editing a key-value pair with jq in bash
body: <p>I would like to rename my package.json "name" value like this:</p>
  
  <pre><code>PROJECT_NAME="MyProject"
  jq '.name = "$PROJECT_NAME"' package.json &gt; tmp.$$.json &amp;&amp; mv tmp.$$.json package.json
  </code></pre>
  
  <p>But it doesn't work. 
  Without the variable works as expected:</p>
  
  <pre><code>jq '.name = "MyProject"' package.json &gt; tmp.$$.json &amp;&amp; mv tmp.$$.json package.json
  </code></pre>
  
  <p>What I am doing wrong?</p>