How to list all users in the mongo shell?

Question

In the MongoDB shell, how do I list all users for the current database that I'm using?
I can't seem to find it anywhere on stackoverflow.

Dispersoid

Answer 1

You can do:

db.getUsers()

or

show users

The both commands print a list of users for the current database. See MongoDB documentation for User Management.

Dispersoid

> db.getUsers(); 2018-02-27T06:45:45.853+0500 E QUERY [thread1] Error: not authorized on test to execute command { usersInfo: 1.0 } : _getErrorWithCode@src/mongo/shell/utils.js:25:13 DB.prototype.getUsers@src/mongo/shell/db.js:1523:1 @(shell):1:1 > show users; 2018-02-27T06:46:57.428+0500 E QUERY [thread1] Error: not authorized on test to execute command... – Marko

@Marko Maybe you need to reset your mongodb users – Ranitta

I'd like to leave here a comment from @flik: "It is fixed with: show roles; then added the role from list." – Dispersoid

To list users in another database: db.getSiblingDB('admin').getUsers(). – Hake

Answer 2

List belongs to DB users:

use db_name and db.getUsers() or show users

List according to the authentication type:

db.getUsers({ filter: { mechanisms: "SCRAM-SHA-256" } })

List with the credentials:

db.getUsers( {showCredentials: true,  filter: { mechanisms: "SCRAM-SHA-256" }} )

Marillin

Answer 3

If you like to list only user names and leave all other bulk info.. try

db.system.users.find({}, {"_id" : 1})

Tricot

Answer 4

Following command can be used to get lis of user on a selected database.

By using find on a selected db

use admin;
db.system.users.find({}, {"user": 1, "db": 1, "roles": 1});

To Get all the user on all the db

db.getUsers();

or 

show users; 

here you can get only user, db and roles nodes in response JSON.

Ezar