[cs615asa] HW3 - Specifying a keypair

[Jan Schaumann]

Rob Hoffmann <rhoffman at stevens.edu> wrote:
> As a followup to this, the ec2-backup man page does not have a reference  
> to an environment variable. How should one specify the identity file  
> used for SSH?

We could have this tool should also honor an environment variable.  Or
we could require the user to have his or her ~/.ssh/config file set up
in a suitable manner.

Either solution is fine with me.  (Or find another -- you may add
additional command-line options if you like.)

-Jan