mongorc

Starting with version 2.0, mongodb allows customizing startup message and the shell prompt. This is an attempt to make these messages more useful. Introduction:

Mongo shell customization (for versions > 2.0)

Place this file at ~/.mongorc.js

Sample Output

System information as of Fri Aug 17 2012 14:02:12 GMT-0400 (EDT)

** Replication **
Primary: db03:27017	Replag: 88 (s)

** Uptime **
uptime: 73307 (s)	human: 20h and 21m

** Connections **
Current: 504	Queued: 0	% read:0	Lock Ratio: 0.265173692921234

** Asserts **
User: 1	Warning: 0
db02:S test> 

The system information gets displayed when the shell starts, and the command prompt has the following format

host:replstate db>

References:

http://www.mongodb.org/display/DOCS/Overview+-+The+MongoDB+Interactive+Shell#Overview-TheMongoDBInteractiveShell-CustomPrompt