title: parse json with shell scripting at linux
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/1955505/parsing-json-with-sed-and-awk">Parsing json with sed and awk</a>  </p>
  </blockquote>
  
  
  
  <p>I have a JSON string like the example below and I want to use, for example, the value of the "uptime" command as a variable in a shell script, what should I do? </p>
  
  <blockquote>
    <p>{ "serverStatus" : { "version" : "1.6.0", "uptime" : 527, "uptimeEstimate" : 526, "localTime" : { "$date" : 1286923624579 }, "globalLock" : { "totalTime" : 526604302, "lockTime" : 3499842, "ratio" : 0.006646056605895331, "currentQueue" : { "total" : 0, "readers" : 0, "writers" : 0 } }, "mem" : { "bits" : 64, "resident" : 150, "virtual" : 76114, "supported" : true, "mapped" : 75950 }, "connections" : { "current" : 1, "available" : 9599 }, "extra_info" : { "note" : "fields vary by platform", "heap_usage_bytes" : 600592, "page_faults" : 1838 }, "indexCounters"....</p>
  </blockquote>