Before you can start manipulating text using a few of UNIX's plethora of text utilities, you need to know how to get at some text.

在开始使用UNIX的各种文本实用程序操作文本之前，需要了解如何获得文本。

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This series of tips articles introduces you to the wealth of software and the ease of control over data flow that you can gain by using these standard GNU text utilities.

这个系列的技巧文章向您介绍，通过使用这些标准的 GNU 文本实用程序，您可以体会到软件的价值以及方便地控制数据流。

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In capabilities and programming level, Rexx can be compared most closely to bash plus the GNU text utilities (throwing in grep and sed for good measure); or maybe to awk or Perl.

在实际能力和编程级别上，Rexx最接近于bash加上gnu文件工具(外加grep和sed)；或者可能相当于awk或Perl。

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