awk

Awk also provides another special block , called the END block .

另外，awk还提供了另一种称为END的专用代码块。

Printing specified fields of text file is a simple awk task .

打印文本文件中的指定字段是一项简单的awk任务。

I use AWK a lot for most small programs that I write .

我经常用AWK，主要是编写小程序。

For example , did you know you can do network programming with awk ?

例如，您以前可能根本不知道可以使用awk进行网络编程。

Sure , awk doesn 't have a great name .

的确，awk没有一个动听的名字。

Listing 15 shows how to get started with the awk command .

清单15显示了如何开始使用awk命令。

You can use the awk command to quickly total the sales for each month .

您可以使用awk命令来快速获得每个月的销售总额。

The awk command can be complex and used in a wide variety of situations .

awk命令可以很复杂并应用于广泛的情景中。

You also see how programs are structured and learn AWK 's record and field paradigm .

您还将了解如何组织程序，并学习AWK的记录和字段范例。

To ignore all records that contain the string'xnpd ' , one could use the following awk statement

要忽略包含字符串'xnpd'的所有记录，可以使用以下awk语句

By default , awk treats each comma-separated value as a different field .

缺省情况下，awk将每个以逗号分隔的值视为不同的字段。

For such situations , awk allows you to define a BEGIN block .

对这种情况，awk支持定义BEGIN代码块。

This will also bring the report into columns where awk can then be used to extract details .

这会让报告以列的形式呈现，awk可以从这些列中提取信息。

Awk tests every record in the specified file ( or files ) for a pattern match .

awk测试指定文件中的每个记录是否符合模式匹配。

Awk has its own complement of special variables .

Awk有其自己的特殊变量集合。

Take that line and use awk to print the second field , which is the total memory in the node .

获取那一行并使用awk输出第二个字段，它是节点中的总内存。

Awk executes this block after all lines in the input file have been processed .

在输入文件的所有行处理完毕之后，awk执行这个代码块。

In this tutorial , you use GAWK to learn the various methods of running AWK programs .

在本教程中，您将使用GAWK，以了解各种运行AWK程序的方法。

I find it more manageable to have separate awk statements for each condition I want met .

我发现，对于希望满足的每个条件，使用单独的awk语句更便于管理。

Normally , awk executes each block of your script 's code once for each input line .

通常，awk会针对每个输入行执行一次每个代码块。

This tutorial provides a hands-on introduction to the AWK text-processing language .

本教程为AWK文本处理语言提供了实践性的介绍。

You should also be able to write custom AWK programs to perform complex text processing from the UNIX command line .

您还应该能够编写自定义的AWK程序，以使用UNIX命令行执行复杂的文本处理。

Awk is geared toward text processing and report generation , yet features many well-designed features that allow for serious programming .

awk适合于文本处理和报表生成，它还有许多精心设计的特性，允许进行多种方式的编程。

The tool comes with a postprocessing script that requires a UNIX shell and awk capabilities .

该工具随后处理程序脚本一起提供，该脚本需要UNIXshell和awk功能。

As mentioned earlier , this variable allows you to set the character sequence that awk expects to find between fields .

如前所述，这个变量支持设置awk期望在字段中找到的字符序列。

Perl 's regular expression heritage comes from shell scripting and the awk / grep tools .

Perl的正则表达式是从shell脚本程序以及awk/grep工具中继承而来的。

In awk , when a print command appears by itself , the full contents of the current line are printed .

在Awk中，当print命令单独出现时，将打印当前行的全部内容。

By using the NOT operator with awk , you can specify what records should NOT be extracted from the report .

通过在awk语句中使用NOT操作符，可以指定不应该提取哪些记录。

In this series of articles , I 'm going to turn you into a proficient awk coder .

在这一系列的文章中，我将使您成为精通awk的编程人员。我承认，awk并没有一个非常好听且又非常“时髦”的名字。

An awk command consists of a pattern and an action composed of one or more statements , as shown in the syntax below

awk命令包括一个模式和由一条或多条语句构成的操作，语法如下所示