Salesforce Developer Deployment Force Cli

salesforce-developer-deployment

https://force-cli.heroku.com/
http://github.com/heroku/force

Force.com CLI (Command-line interface for Force.com APIs)

   Best for:

     a. Scripted commands and automated tasks
     b. When your security policies dictate that passwords must not be stored 
        on disk; forces interactive login

   Limitations:

     a. Logging in can be difficult behind a firewall