gistfile1.txt

[root@ii83-2 (14:01:44) ~/mongodb-linux-i686-1.1.4/bin]# ./mongo
MongoDB shell version: 1.1.4
url: test
connecting to: test
type "help" for help
> use common
switched to db common
> db.createCollection("arrtest");
{ "ok" : 1 }
> j={"random":"some crap","tester":["test1","test2","test3"]}
{ "random" : "some crap", "tester" : [ "test1", "test2", "test3" ] }
> t={"crap":"this doesn't matter","tester":["test3"]}
{ "crap" : "this doesn't matter", "tester" : [ "test3" ] }
> db.arrtest.save(t);                                
> db.arrtest.find();                                 
{ "_id" : ObjectId("4b4e432c03df0479067d9e98"), "random" : "some crap", "tester" : [ "test1", "test2", "test3" ] }
{ "_id" : ObjectId("4b4e436103df0479067d9e99"), "crap" : "this doesn't matter", "tester" : [ "test3" ] }
> db.arrtest.find({"_id":"4b4e432c03df0479067d9e98"});    
>