Search all collections and fields in mongoDB

mongo-search-all.js

function SearchAll(regexp) {
  var results = {};
  var all = db.getCollectionNames();
  var results = [];
  for (var i in all) {
    var coll = all[i];
    if (coll == "system.indexes") continue;
    results[coll] = [];
    db[coll].find().forEach(
      function(doc) {
        Object.keys(doc).forEach(
          function(key) {
            if (regexp.test(doc[key])) {
              results[coll].push(doc);
            };
          }
        )
      }
    );
  }
  return results;
}
SearchAll(/tyres/gi);