def exec!(command, opts = {}, &block)
      $stdout.puts(command.to_s.blue) if verbose
      @ssh.exec! command, &block
    end
def exec!(command, opts = {}, &block)
      $stdout.puts(command.to_s.blue) if verbose
      @ssh.exec! command, &block
    end
Public: Execute a command on the remote host.

 command - The command to execute.
 opts    - A hash of options:
           :shell - True if the command should be run via the remote shell.

 Returns the raw response from the command.