[--key=<keyfile>] [--all|--type=<peer|poller|master>] [destination]..
Push public ssh key to specified remote node(s) (destinations).

The key will be read from specified keyfile, or if not
specified, default to: ~/.ssh/id_rsa.pub

If no key exists, a new key will be generated automatically.

A combination of different node types as well as specific nodes
can be specified at the same time.
