def ip_show
      Common.run!(Common.cmd("ip"), :params => ["addr", "show", @interface]).output
    rescue AwesomeSpawn::CommandResultError => e
      raise NetworkInterfaceError.new(e.message, e.result)
    end
def ip_show
      Common.run!(Common.cmd("ip"), :params => ["addr", "show", @interface]).output
    rescue AwesomeSpawn::CommandResultError => e
      raise NetworkInterfaceError.new(e.message, e.result)
    end
Runs the command `ip addr show <interface>`

 @return [String] The command output
 @raise [NetworkInterfaceError] if the command fails