因此，一个变量只有在没有在任何makefile或命令行中指定时，才会使用环境变量的设置注意：父进程makefile变量有时候会传递下来，但不总会这样。
Thus, environment variables are used only if a variable is not set in any makefile or on the command line. Note: parent makefile variables are sometimes, but not always, passed down.
如果仅找到了一个匹配文件名，会将此文件名替换为队列名称，setmqaut命令将执行并失败，但不会有任何提示。
If only one file name matches, the file name is substituted for the queue name, and the setmqaut command is executed but fails silently.
rmlv命令仅删除逻辑卷，但不删除其他实体，例如使用该逻辑卷的文件系统或分页空间。
The RMLV command removes only the logical volume, but does not remove other entities, such as file systems or paging Spaces that were using the logical volume.
清单9显示了静默安装产品的命令，利用响应文件，但不直接调用jre。
Listing 9 shows commands for installing a product silently, with a response file and without calling the JRE directly.
如果您没有头绪，或者一个项目非常适合使用shell命令，但不知道如何使用，那么我在这里提供一些见解。
In case you're stuck for ideas or a project that just jumps out as a good way to use shell commands hasn't presented itself, I offer a few ideas here.
就像一个演员，你可以冒充一下，但不能被命令而随意改变我们的情绪。
Just like an actor, you can fake it, but we're not wired for our emotions to change on command.
诺拉在心里骂他是排气管，但不得不执行他的命令。
Nora called him exhaust pipe in her heart, but she had to execute his orders.
清单9.通过使用响应文件，但不直接调用jre来以静默方式安装产品的示例命令。
Listing 9. Sample commands for installing the product silently by using a response file and not calling the JRE directly.
ldapsearch -x命令应该可以成功完成，但不会返回任何数据。
The ldapsearch -x command, while not returning any data, should complete successfully.
这个脚本提供了一种理想的方式，它允许特定用户telnet或ssh到您的系统中，但不允许这个用户从命令行建立任何新的外出连接。
This script provides an ideal way to allow a particular user to Telnet or SSH into your system, yet not allow this user to establish any new outgoing connections from the command-line.
此命令生成的输出将包含但不限于以下信息。
The output produced by this command will contain, among other things, the following information.
运行此命令并确认下面列出的包出现在所显示的状态中(但不一定以相同的顺序)。
Run this command and confirm that the bundles listed below appear in the state shown (but not necessarily in the same order).
实际上，您仍然可以对标准错误使用重定向或管道命令，但不能对标准输出使用，因为没有任何标准输出—正在内部使用popen函数由管道将它输送至lp进程。
Actually, you can still redirect or pipe stderr, but not stdout, since there will not be any standard output — it's being internally piped to the lp process using the popen function.
下一个任务就是编程以满足阿西莫夫第二定律：机器人应服从人的一切命令，但不得违反第一定律。
The next task will be to write programs that meet Asimov's second law-that a robot must obey orders given to it by human beings, except where such orders would conflict with the first law.
只读命令但不执行，通常在检查语法时有用，交互状态失效。
Reads commands, but does not execute them. Used to check the syntax of scripts. Not on when running interactively.
在命令行的后面追加一个采用字符串参数数组的开关，但不尝试在开关参数的两侧加上引号。
Appends the command line with a switch that takes an array of string parameters, without attempting to encapsulate switch parameters with quotation marks.
法庭发布了一大堆的命令但不能迫使他们执行。
在命令行的后面追加一个采用单个字符串参数的开关，但不尝试在开关参数的两侧加上引号。
Appends the command line with a switch that takes a single string parameter, without attempting to encapsulate the switch parameter with quotation marks.
在命令行的后面追加一个开关，但不尝试在开关参数的两侧加上引号。
Appends the command line with a switch, without attempting to encapsulate the switch parameters with quotation marks.
在命令行的后面追加一个采用充当字符串参数的任务项规范数组的开关，但不尝试在任务项规范的两侧加上引号。
Appends the command line with a switch that takes a task item specification as a single string parameter, without attempting to encapsulate the switch parameter with quotation marks.
在命令行的后面追加一个采用充当单个字符串参数的任务项规范的开关，但不尝试在开关参数的两侧加上引号。
Appends the command line with a switch that takes an array of task item specifications that act as string parameters, without attempting to encapsulate them with quotation marks.
理想情况下，我应该可以从命令行指定的代理，但不是很明显，这是可能的。
Ideally, I should be able to specify the proxy from the command line, but it is not obvious that this is possible.
老师们会继续邀请她参与具体的活动，但不会命令。
The instructors will continue to invite her to participate in specific activities but will not require her to participate.
当你调用删除命令，它不但不会真正删除任何东西，而且也不会送命令给服务器。
When you invoke the delete command, not only will it not actually delete anything, but it doesn't even send the command to the server.
这听起来很像大型机的环境，但不同的是对命令的预处理和后处理。
This sounds quite like the mainframe environment, but the difference is the pre-and post-processing of the command.
您可以使用命令式语法来执行需求和覆写，但不可用来执行要求。
You can use imperative syntax to perform demands and overrides, but not requests.
这个只会在命令窗口中提出提示，但不能在一个函数中得到使用。
It can only be issued from the Command Window prompt. It cannot be used in a function.
这个只会在命令窗口中提出提示，但不能在一个函数中得到使用。
It can only be issued from the Command Window prompt. It cannot be used in a function.
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