$ echo 'use admin;' | mongosh
Current sessionID:  41153cf25761a2bd67fb1539
Connecting to:      mongodb://127.0.0.1:27017
Using MongoDB:      4.4.1
Using Mongosh Beta: 0.5.0

For more information about mongosh, please see our docs: https://docs.mongodb.com/mongodb-shell/

> (node:20957) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 newListener listeners added to [Socket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (events.js:402:17)
    at Socket.addListener (events.js:418:10)
    at Socket.Readable.on (internal/streams/readable.js:853:35)
    at LineByLineInput.on (/home/addaleax/src/mongosh/packages/cli-repl/lib/line-by-line-input.js:54:29)
    at EventEmitter.onData (readline.js:1161:14)
    at EventEmitter.emit (events.js:327:20)
    at EventEmitter.emit (domain.js:486:12)
    at LineByLineInput._emitChunk (/home/addaleax/src/mongosh/packages/cli-repl/lib/line-by-line-input.js:108:23)
    at LineByLineInput._emitChar (/home/addaleax/src/mongosh/packages/cli-repl/lib/line-by-line-input.js:105:14)
    at LineByLineInput._flush (/home/addaleax/src/mongosh/packages/cli-repl/lib/line-by-line-input.js:121:18)