This header file should ideally contain all the class definitions, member functions, and variables.
在理想情况下，头文件应该包含所有类定义、成员函数和变量。
For this reason, each script will contain a header in which you will set any variables necessary to execute the line commands.
因此，每个脚本将包括一个头部，您将在这个头部中设置执行命令所需的任何变量。
So far, you've created a script header and some simple variables and added a function, as shown in Listing 14.
到目前为止，您已经创建了一个脚本标头和一些简单变量，并且添加了一个函数，如清单14所示。
When these sanity checks are passed, the ELF image is parsed and a set of convenience variables are created for each section header to simplify their access later.
等等）。 完成健康检查后，就会解析ELF映像，然后会为每个区段头创建一组方便变量，简化随后的访问。
Always follow the same steps: build your script header, define your variables, and error check your work.
请始终遵循同样的步骤：构建您的脚本标头，定义变量，然后对您的工作进行错误检查。
After setting up variables for the total number of packets to be recorded between reads and recording the number of lines read from the vmstat program, we move on to header definitions.
为各次读取之间记录的信息包总数设置一个变量并记录从vmstat程序中读取到的行数，接下来定义标题。
The $ENV hash array contains the environmental variables, allowing us to interrogate the Accept HTTP header.
$ENV哈希array包含了环境变量，它允许程序员重定义AcceptHTTP头信息。
This assumes that the HTTP header in the request sent to the provider was populated with values which the web server would store as CGI environment variables locally.
这假设发送给提供者的请求中的http头包含在web服务器本地作为CGI环境变量存储的值。
The $_SERVER array contains the server variables, allowing us to interrogate the Accept HTTP header.
$_SERVER序列变量包含了服务器端变量，允许程序员重定义AcceptHTTP头信息。
So far, you've learned how to start writing a Korn shell script by writing a basic script header and defining some variables.
到目前为止，作为编写Kornshell脚本的入门内容，您已经了解了如何编写基本的脚本标头，以及定义变量。
Before we write our own header, we need to introduce some additional preprocessor facilities. The preprocessor lets us define our own variables.
在编写头文件之前，我们需要引入一些额外的预处理器设施。预处理器允许我们自定义变量。
A basic understanding of programming concepts is helpful for tasks such as setting variables, using regular expressions, creating loops and extracting header data.
对基本的编程概念的理解，有助于自动化测试脚本的编写，例如设置变量、使用正则表达式、创建循环、读取数据头等等。
Header records are often used when the number of physical records needed to contain the data for a particular variable is not constant for all variables.
当数个实体记录必须要包含某个特定变项，而这个变项并非定值的时候，就会使用标题记录。
Header records are often used when the number of physical records needed to contain the data for a particular variable is not constant for all variables.
当数个实体记录必须要包含某个特定变项，而这个变项并非定值的时候，就会使用标题记录。
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