title: get json key value using powershell
body: <p>I have the following json output string:  </p>
  
  <pre><code>{
      "meta": {
          "limit": 20,
          "next": null,
          "offset": 0,
          "previous": null,
          "total_count": 1
      },
      "objects": [{
          "bcontext": "/api/v2.0/buildercontext/2/",
          "bugs": [],
          "build": {
              "bldtype": "obj",
              "branch": "main",
              "buildstatus": [{
                  "build": "/api/v2.0/build/2140634/",
                  "failurereason": "_checkfailures (seen: FAIL - /testrun/18647678/ - area[4769] AIM-SANITY)",
                  "id": "1294397",
                  "lastupdate": "2015-03-31T14:30:18",
                  "overridden": false,
                  "overridedesc": "",
                  "overrideuser": null,
                  "recommended": false,
                  "resource_uri": "/api/v2.0/buildstatus/1294397/",
                  "slatype": {
                      "id": "26",
                      "name": "VA_Bats",
                      "resource_uri": "/api/v2.0/sla/26/"
                  }
              }],
              "changeset": "494625",
              "coverage": false,
              "deliverables": ["/api/v2.0/deliverable/4296455/", "/api/v2.0/deliverable/4296956/", "/api/v2.0/deliverable/4296959/", "/api/v2.0/deliverable/4296986/", "/api/v2.0/deliverable/4296992/", "/api/v2.0/deliverable/4296995/", "/api/v2.0/deliverable/4297034/", "/api/v2.0/deliverable/4297058/"],
              "git_host": null,
              "git_repo": null,
              "id": "2140634",
              "p4host": {
                  "id": "10",
                  "p4port": "perforce-rhino.eng.com:1800",
                  "p4weburl": "http://p4web.eng.com:1800",
                  "resource_uri": "/api/v2.0/perforceserver/10/"
              },
              "resource_uri": "/api/v2.0/build/2140634/",
              "site": "/api/v2.0/site/25/",
              "site_name": "mbu",
              "slastested": ["/api/v2.0/sla/26/"],
              "submit_time": "2015-03-31T05:40:21",
              "submit_user": "haharonof"
          },
          "builder": "/api/v2.0/builder/1423/",
          "clean": true,
          "componentbuilds": "vcops-vsphere-solution-pak=sb-5242047,vrops=sb-5242013,vscm=sb-5242025,vsutilities=sb-5242029;parentbuilder=1410",
          "deleted": false,
          "endtime": "2015-03-31T06:20:58",
          "helpzillas": [],
          "id": "4296956",
          "location": {
              "httpserver": "sc-prd-cat-services001.eng.com",
              "id": "1",
              "name": "PA",
              "nfsserver": "cat-results.eng.com",
              "pxedir": "/mts/builder-pxe",
              "resource_uri": "/api/v2.0/location/1/",
              "resultspath": "/results"
          },
          "nfsserver": "build-storage60",
          "p4client": "vmktestdevnanny-builder-1423",
          "path": "/storage60/release/sb-5242148",
          "ready": true,
          "resource_uri": "/api/v2.0/deliverable/4296956/",
          "result": "PASS",
          "sbbuildid": 5242148,
          "sbjobid": 5242148,
          "sbuser": "arajamanickam",
          "starttime": "2015-03-31T06:16:50",
          "targetchangeset": "494625",
          "targets": "vcopssuitevm",
          "triagetime": null,
          "vmodl": null
      }]
  }
  </code></pre>
  
  <p>I want to get <code>sbbuildid</code> using powershell. How can I get this?</p>