Print mongo result to CSV

CSVPrinter.js

/*globals db*/

db.system.js.save({
	_id : 'CSVPrinter',
	value : function CSVPrinter() {
		var firstRun = true;

		function checkFirstRun(record){
			if (firstRun) {
				firstRun = false;
				printCSVHeader(record);
			}
		}
		
		function csvSafeValue(candidate)
		{
			candidate = candidate || '';
			var escapedSpaces = candidate
				.toString()
				.replace(/"/, '\"');
			var result = '"' + escapedSpaces + '"';
			
			return result;
		}
		
		function printCSVHeader(record) {
			var properties = [];

			for (var property in record) {
				if (record.hasOwnProperty(property)) {
					var value = csvSafeValue(property);
					
					properties.push(value);
				}
			}

			print(properties.join(','));
		}

		function getStringValue(property) {
			property = property || '';
			
			if (property instanceof Date) {
				var day = property.getDate();
				var month = property.getMonth() + 1;
				var year = property.getFullYear();

				return day + '/' + month + '/' + year;
			}
					
			return property.toString();
		}
		
		function printToCSV(record) {
			var properties = [];

			checkFirstRun(record);
			
			for (var property in record) {
				if (record.hasOwnProperty(property)) {
					var value = getStringValue(record[property]);
					var safeValue = csvSafeValue(value);
					
					properties.push(safeValue);
				}
			}

			print(properties.join(','));
		}

		return {
			print : printToCSV
		};
	}
});

Print mongo result to CSV

Run this script on the mongo instance to install and use the following syntax to print a CSV result

db.loadServerScripts();
var csvPrinter = new CSVPrinter();
db.collection.find({}).forEach(csvPrinter.print);