command line authentication of mongo fails

Question

I am running mongo 2.2.2 on osx.

When I do the following authentication is going fine:

$ mongo
>> use admin
>> db.auth(\"uname\", \"passw         


        

Answer 1

A password containing special characters, especially the dollar sign, has to be put in single quotes to protect them from the command shell:

$ mongo admin -u uname -p 'password'