Is it possible to iterate a mongo cursor twice?

Question

In other words, is there a way to rewind it to the beginning?

EDIT

I am using mongo shell and pymongo.

Answer 1

Cursor in pymongo has .rewind() method, you can refer to sample code from previous question with answer that apply.

Native mongo shell api, however, doesn't provide such method, see method help() on DBQuery object prototype.:

> db.collection.find().help()
find() modifiers
        .sort( {...} )
        .limit( n )
        .skip( n )
        .count() - total # of objects matching query, ignores skip,limit
        .size() - total # of objects cursor would return, honors skip,limit
        .explain([verbose])
        .hint(...)
        .showDiskLoc() - adds a $diskLoc field to each returned object

Cursor methods
        .forEach( func )
        .map( func )
        .hasNext()
        .next()