title: Read JSON file & parse to get element values in shell script
body: <p>I have a json file names test.json with the below content.</p>
  
  <pre><code>{
          "run_list": ["recipe[cookbook-ics-op::setup_server]"],
      "props": {
          "install_home": "/test/inst1",
              "tmp_dir": "/test/inst1/tmp",
          "user": "tuser
                   }
  }
  </code></pre>
  
  <p>I want to read this file into a variable in shell script &amp; then extract the values of install_home,user &amp; tmp_dir using expr. Can someone help, please?</p>
  
  <p>props=<code>cat test.json</code></p>
  
  <p>works to get the json file into a variable. Now how can I extract the values using expr. Any help would be greatly appreciated.</p>