If either of these commands fail, contact your system or network administrator to ensure that the machine is correctly configured.
如果其中任一个命令失败，请联系系统或网络管理员，以确保该计算机已正确地配置。
Learn how a system administrator can better spend their time in other ways than by typing endless commands from the command line.
了解系统管理员如何更好地利用他们的时间，而不是把时间浪费在从命令行键入无休止的命令。
Running such commands is part of system administration — and as a single user of a UNIX system, you are your own system administrator.
运行上述命令是系统管理员的部分工作，作为一个UNIX系统的单个用户，你就是你自己的系统管理员。
One thing that the system administrator has to take care is that some commands need arguments that can be found from the preceding commands.
系统管理员必须注意的一点是，有些命令所需要的参数可以从前面命令中获得。
One thing that the system administrator has to take care is that some commands need arguments that can be found from the preceding commands.
系统管理员必须注意的一点是，有些命令所需要的参数可以从前面命令中获得。
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