Shell operations on mongodb and shellmongodb

Shell operations on mongodb and shellmongodb

Want to query MongoDB data through shell

Many people on the Internet say that mongoDB does not support shell. I basically agree with this statement;

But the project needs to be done, and I have to try,Key to use -- eval

To query the number of users:

# Cat count_users.sh

#! /Bin/sh

/Usr/bin/mongo xxx -- quiet -- authenticationDatabase admin-u root-p 'xyz' -- eval "db. system. users. count ()"

Note:

1. quiet only outputs results

2. eval this is evaluate javascript

3. -- authenticationDatabase admin performs auth verification. you can't forget this!

AuthenticationDatabase can see my article: http://blog.csdn.net/jacson_bai/article/details/41013259