#!/bin/bash
s='      "ProxyHost": "ie.review.visa.com",
      "ProxyHost": "ocasta.zendesk.com",
      "ProxyHost": "dev.zemanta.com",
      "ProxyHost": "bharian.api.useinsider.com",
      "ProxyHost": "optout.service.mycard.visa.com",
      "ProxyHost": "ir.newrelic.com",
      "ProxyHost": "metabase.yoast.com",
4:      "ProxyHost": "designdiscoveryya.gsd.harvard.edu",
18:      "ProxyHost": "pls.law.harvard.edu",
32:      "ProxyHost": "view.jquery.com",
46:      "ProxyHost": "www.rmf.harvard.edu",
60:      "ProxyHost": "execed.sph.harvard.edu",
74:      "ProxyHost": "note.microsoft.com",
102:      "ProxyHost": "librarylab.law.harvard.edu",
116:      "ProxyHost": "api.jquery.com",
130:      "ProxyHost": "pmsdn.'
sed -E 's/^([0-9]+:)?[[:space:]]*"[^"]*":[[:space:]]*"([^"]*).*/\2/' <<< "$s"