MongoDB Documentation, Release 3.0.4 the JavaScript compiler. For mongo may convert 1+1 to 2 or remove comments. The actual changes affect only the appearance of the code and will vary based on the version of JavaScript used but will not affect the semantics of the code. To exit the shell, type quit() or use the <Ctrl-c> shortcut. See also: Getting Started Guide 109 In addition to the documentation in the MongoDB Manual , the mongo shell provides some additional information in its “online” help system. This document provides an overview of accessing this help information. See also: To see the list of options and help for starting the mongo shell, use the --help option from the command line: mongo --help To see the list of help, in the mongo shell, type help : help show dbs New in version 2.4: show databases is now an alias for show dbs db.help() $^{109}$https://docs.mongodb.org/getting-started/shell 276 Chapter 5. Administration Exit the Shell Access the mongo Shell Help Information Command Line Help Shell Help Database Help • mongo Manual Page • MongoDB Scripting (page 265), and • mongo Shell Quick Reference (page 278). • To see the list of databases on the server, use the show dbs command: • To see the list of help for methods you can use on the db object, call the db.help() method: • To see the implementation of a method in the shell, type the db.<method name> without the parenthesis ( () ), as in the following example which will return the implementation of the method db.updateUser() :