MongoDB - Mongosh

Mongosh is the official command-line shell for MongoDB. It provides a user-friendly and interactive environment for interacting with MongoDB databases and clusters. mongosh is designed to offer a modern and powerful interface, making it easy for developers and administrators to work with MongoDB.

Installation:

• Installation via npm:

  npm install -g mongodb
  

• Installation via Homebrew (on macOS):

  brew tap mongodb/brew
  brew install mongosh
   

• Installation via Chocolatey (on Windows):

  choco install mongosh
   

Connecting to MongoDB:

• Connect to a MongoDB Server:

  mongosh mongodb://hostname:port/database
   

• Connect to a MongoDB Atlas Cluster:

  mongosh "mongodb+srv://<username>:<password>@<cluster-address>/test?retryWrites=true&w=majority"
   

Basic Usage:

• Query Documents:

  db.collection_name.find();
  
  

• Insert Documents:

  db.collection_name.insertOne({ field1: value1, field2: value2 });
   

• Update Documents:

  db.collection_name.updateOne({ field: value }, { $set: { updated_field: new_value } });
   

• Delete Documents:

  db.collection_name.deleteOne({ field: value });
   

Interactive Features:

• Autocompletion: mongosh supports autocompletion for MongoDB commands and JavaScript functions.

• Syntax Highlighting: Code snippets are syntax-highlighted for better readability.

• Integrated Help: Access documentation and help directly from the shell.

Built-in Commands:

• show dbs: List available databases.
• use <database>: Switch to a specific database.
• show collections: List collections in the current database.
• db.version(): Display the MongoDB server version.

Scripting and Automation:

• Run Scripts: Execute JavaScript files using the load() function.

  load('path/to/script.js');
   

• Save Output: Save query results to a file.

  db.collection_name.find().toArray().forEach(printjson);
   

Exiting mongosh:

• Exit the Shell:

  exit
   

• Keyboard Shortcut: Press Ctrl + D to exit.

mongosh provides a powerful and user-friendly interface for interacting with MongoDB, and it's continually evolving with updates and improvements.