CloudMonkey - Exit Status and Print Parameters Support

[ilya musayev]

Hi Rohit,

What is your thought on tracking exit code of CloudMonkey, as it stands 
- even if CloudMonkey prints "Error:" message, no exit code is passed 
back to a shell.
I know this may conflict if someone is using interactive shell, but 
perhaps we can have a batch mode that can push exit codes to a shell?

One other suggestion, as it stands if i do list zone (or any other 
object), i get a list of 10-20 parameters, while i can grep through what 
i need, it is rather painful and in some cases - grep just does not work 
because of funky unseen chars i assume. It would be nice to have on 
option that only prints user chosen parameters.

Example, cloudmonkey list zones :print id,dns,something-else - or any 
other way - as long as we get this functionality.

Thanks
ilya