如何在Perl中将文件创建时间与当前时间进行比较? [英] How can I compare file creation time to the current time in Perl?

问题描述

我想在Perl中比较当前时间和文件创建时间，但是两者的格式不同.当地时间采用以下格式:

i want to compare the current time and file creation time in Perl but both are in different format. localtime is in this format:

22116291110813630

文件创建时间为

Today, December 29, 2008, 2:38:37 PM

我该如何比较哪个更大以及它们的不同?

How do i compare which one is greater and their difference?

推荐答案

比使用stat()和time()/localtime()更加容易.

It's even easier than using stat() and time()/localtime().

my $diff = -M $filename;

-M运算符返回文件的年龄"(自程序启动以来的天数).它记录在 -X函数或perldoc -f -X中.

The -M operator returns the "age" of the file (in days since the start of the program). It's documented under the -X functions or in perldoc -f -X.

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