获得AWK用户输入 [英] get the user input in awk

问题描述

有没有办法读通过AWK编程用户输入？
我尝试写一个脚本来读取其中载有学生的姓名和ID的文件。
我得从通过键盘用户的学生的姓名，并通过使用AWK返回所有学生的成绩。

Is there any way to read the user input through the awk programming? I try writing a script to read a file which contained student's name and ID. I have to get the name of the student from the user through the keyboard and return all student's results by using the awk.

推荐答案

您可以使用函数getline 功能收集用户输入。请确保此设置在 BEGIN 块。这里的内容 script.awk ：

You can collect user input using the getline function. Make sure to set this in the BEGIN block. Here's the contents of script.awk:

BEGIN {
    printf "Enter the student's name: "
    getline name < "-"
}

$2 == name {
    print
}

下面是用的ID，名称和结果的示例文件：

Here's an example file with ID's, names, and results:

1 jonathan good
2 jane bad
3 steve evil
4 mike nice

样运行：

awk -f ./script.awk file.txt

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