AWK是一种解释性编程语言。它是非常强大的,专为文本处理。AWK 提供了极其强大的功能:可以进行样式装入、流控制、数学运算符、进程控制语句甚至于内置的变量和函数。它具备了一个完整的语言所应具有的几乎所有精美特性。AWK名字是从它的作者的姓氏衍生的,它的作者们为:Alfred Aho, Peter Weinberger, 和 Brian Kernighan。

GNU/Linux分发是由自由软件基金会(FSF)编写和维护,并通常被称为GNU AWK的AWK的版本。以下是AWK的变种。

  • AWK - 这是从AT&T实验室的原始AWK。

  • NAWK - 这是从AT&T实验室的更新和改进的AWK版本。

  • GAWK - 这是GNU AWK。所有的GNU/ Linux发行版的关系GAWK,并与AWK和NAWK完全兼容。

AWK的典型用法

任务众多可以使用AWK完成。以下只是其中的几个:

  • 文本处理

  • 产生格式化文本报告

  • 执行算术运算

  • 执行字符串操作等


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