def cli(env, sortby, cpu, domain, datacenter, hostname, memory, network, tag, columns, limit):
    """List hardware servers."""

    manager = SoftLayer.HardwareManager(env.client)
    servers = manager.list_hardware(hostname=hostname,
                                    domain=domain,
                                    cpus=cpu,
                                    memory=memory,
                                    datacenter=datacenter,
                                    nic_speed=network,
                                    tags=tag,
                                    mask="mask(SoftLayer_Hardware_Server)[%s]" % columns.mask(),
                                    limit=limit)

    table = formatting.Table(columns.columns)
    table.sortby = sortby

    for server in servers:
        table.add_row([value or formatting.blank()
                       for value in columns.row(server)])

    env.fout(table)
List hardware servers.