mongosh

mongosh is the official MongoDB shell, an interactive JavaScript shell and scripting environment for MongoDB. It replaces the legacy mongo shell and provides a modern, cross‑platform interface for database administration and development. It runs on Windows, macOS, and Linux and connects to MongoDB servers via standard connection strings, including replica sets and sharded clusters, with support for authentication and TLS/SSL.

mongosh aims to improve the user experience with a clearer JavaScript surface, better error messages, and improved command-line editing. It offers autocompletion, syntax highlighting, and built‑in help, and it can load and run JavaScript scripts using load().

Usage and compatibility: mongosh provides familiar objects such as db, show collections, and CRUD operations. While it is designed to be familiar to users of the old shell, some commands differ and scripts may require updates. The legacy mongo shell is deprecated in MongoDB documentation, with mongosh recommended for new work.

Distribution and installation: mongosh is distributed by MongoDB as a standalone shell binary and is included with official server packages. It can be downloaded from the MongoDB download center and installed on supported platforms. After installation, the mongosh command starts an interactive session or runs scripts in batch mode.