rup - 显示远程计算机（RPC 版本）的主机状态
rup [-hlt] [host]...
rup gives a status similar to uptime(1) for remote machines.If no host arguments are specified, it broadcasts on the local network, and displays the responses it receives.
如果提供了 host 参数，则不会广播 rup，而只是查询指定主机列表。
通常情况下，列表按照收到响应的顺序排列，但是可通过指定以下所列选项中的一个来更改此顺序。
A remote host will only respond if it is running the rpc.rstatd(8) daemon, which is normally started up from inetd(8) under the service identifier svc:/network/rpc/rstat:default.This service is disabled by default on Solaris 10 systems with a secure by default configuration and on all Solaris 11 systems, and must be enabled by an administrator in order for a host to respond to rup queries.
If no name can be found for a host via the hosts(5) name service, rup displays a numeric IP address for the host.
按主机名的字母顺序对显示进行排序。
按平均负荷值对显示进行排序。
按运行时间对显示进行排序。
有关下列属性的说明，请参见 attributes(7)：
|
ruptime(1), attributes(7), inetd(8), rpc.rstatd(8)
广播无法通过网关工作。
The rup command, including support for the options –h, –l, and –t, has been present since the initial release of Solaris.