I know this is knucklehead stuff, but I never trust myself to do it without 10 minutes of practice beforehand:
var dbs = db.getMongo().getDBNames() var prefix_to_drop = 'testdb_'; for (var i in dbs) { db = db.getMongo().getDB(dbs[i]); if (db._name.lastIndexOf(prefix_to_drop,0) === 0) { print("Dropping " + db._name); db.dropDatabase(); } }
I use this when I’ve been breaking tests, and the database cleanup is getting skipped. And I end up with 150 test databases lying around.