You'll often find them as part of a more complex command pipeline (see Listing 2).
您常常会发现它们作为更复杂的命令管道中的一部分(请参见清单2)。
This is especially true if you need to process complex command-line switches to create multi-level hashes.
这对于您需要处理复杂的命令行开关以创建多层散列时尤为有用。
This article shows you how to build pv on a UNIX system and apply it to simple and complex command-line combinations.
本文介绍如何在UNIX系统上构建pv，以及如何在简单和复杂的命令行组合中应用它。
In particular, you would probably get weary of typing long, complex command lines with loads of options, or where the order of the arguments has to be just so.
尤其是，您可能厌倦了输入冗长的、复杂的命令行，其中可能包含大量的选项、或者参数的顺序有严格的要求。
Well-designed graphical user interfaces can free the user from learning complex command languages.
设计得好的图形用户界面可以使用户从学习复杂的命令语言中解放出来。
Well-designed graphical user interfaces can free the user from learning complex command languages.
设计得好的图形用户界面可以使用户从学习复杂的命令语言中解放出来。
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