下面，您为要执行的命令设置一些全局变量，为响应消息设置一个缓冲区，并设置一个哈希来包含来自触发器消息的字段(见清单4)。
Next, you set up global variables for the command to be executed, a buffer for response messages, and a hash that will contain the fields from the trigger message (Listing 4).
在该脚本中，(通过设置FS变量)在代码中指定字段分隔符，而前一示例通过在命令行向awk传递- F “： ”选项来设置FS。
In this script, the field separator is specified within the code itself (by setting the FS variable), while our previous example set FS by passing the -f ":" option to awk on the command line.
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。
As mentioned earlier, this variable allows you to set the character sequence that awk expects to find between fields.
XML文档中bpressure和Notes元素都存在之后，将患者信息字段设置为包含在doc变量中的新xml。
After both the BPressure and Notes elements are ensured to exist in the XML document, the patient information field is then set to be the new XML as contained in the doc variable.
如果您试图使用reg_flag_C2Wprop字段设置为1的RegisterAPI时，您将知道未设置环境变量，调用将失败，并返回代码8和原因代码21。
You will know the environment variable is not set if you attempt to use the Register API with the reg_flag_C2Wprop field set to 1 and the call fails with a return code 8 and reason code 21.
如果您试图使用reg_flag_C2Wprop字段设置为1的RegisterAPI时，您将知道未设置环境变量，调用将失败，并返回代码8和原因代码21。
You will know the environment variable is not set if you attempt to use the Register API with the reg_flag_C2Wprop field set to 1 and the call fails with a return code 8 and reason code 21.
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