作为单独的应用程序从日志文件读取数据正在写入它 [英] Reading data from a log file as a separate application is writing to it

问题描述

我想监控应用程序正在写入的日志文件。我想要处理文件逐行as，或不久之后，它被写入。我没有找到一种方法来检测文件已经扩展后到达eof。

I would like to monitor a log file that is being written to by an application. I want to process the file line by line as, or shortly after, it is written. I have not found a way of detecting that a file has been extended after reaching eof.

代码需要在Mac和PC上工作，可以是任何语言，虽然我最熟悉C ++和Perl。

The code needs to work on Mac and PC, and can be in any language, though I am most familiar with C++ and Perl.

有没有人建议最好的方法？

Does anybody have a suggestion for the best way to do it?

推荐答案

在Perl中， File：Tail 模块完全符合您的需要。

In Perl, the File::Tail module does exactly what you need.

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