硬盘活动 [英] hard disk activity

问题描述

我的任务涉及知道文件何时发生变化。但是对于小文件来说这是一个足够简单的任务，检查修改

日期，或者对内容进行比较，我需要能够做到这一点<对于非常大的文件，
。


Python中是否有任何可用的内容可以让我支持
检查硬盘本身或者，当发生

磁盘写入时，我的常规可以识别？


感谢您的帮助，


V

I have a task that involves knowing when a file has changed. But while
for small files this is an easy enough task, checking the modification
dates, or doing a compare on the contents, I need to be able to do this
for very large files.

Is there anything already available in Python that will allow me to
check the hard-disk itself, or that can make my routines aware when a
disk write has occurred?

Thanks for any help,

V

推荐答案

VSmirk：

我的任务涉及知道文件何时发生变化。但是对于小文件来说这是一个足够简单的任务，检查修改日期，

I have a task that involves knowing when a file has changed. But while
for small files this is an easy enough task, checking the modification
dates,

检查修改时间的工作方式是否相同大文件。为什么

不够好？


你的平台是什么？


-
$ b $bRenéPijlman

Checking the modification time works the same way for large files. Why is
that not good enough?

What''s your platform?

--
René Pijlman

我主要在Windows XP上工作，但我的解决方案需要跨越

平台。


问题是我需要的不仅仅是文件已经修改了b $ b。我需要知道该文件中的修改内容。


我需要同步远程文件夹上的文件和我目前的

解决方案，只是复制文件，如果日期比较或

内容比较，对于非常大的文件变得有点无法管理。

我正在使用的一些文件是数百个MB的大小，或者

更大。


所以我需要跳过复制一百个只有几个的MB文件

字节已更改，而是识别哪些字节已更改，以及

这些更改的位置。我在想一个模块在文件系统级别以下工作的价格低于b $ b，在设备级别，可能是一个地方来寻找解决方案。

I''m working primarily on Windows XP, but my solution needs to be cross
platform.

The problem is that I need more than the fact that a file has been
modified. I need to know what has been modified in that file.

I am needing to synchronize the file on a remote folder, and my current
solution, which simply copies the file if a date comparison or a
content comparison, becomes a bit unmanageable for very large files.
Some of the files I''m working with are hundreds of MB in size, or
larger.

So I need to skip copying a hundred MB file that has had only a few
bytes changed and instead identify which few bytes have changed and
where those changes are. I was thinking having a module that worked
below the file system level, at the device level, might be a place to
look for a solution.

" VSmirk" < VA ********* @ gmail.com>写道：

"VSmirk" <va*********@gmail.com> writes:

我需要同步远程文件夹上的文件，以及我目前的
解决方案，如果日期比较或内容比较，它只会复制文件对于非常大的文件来说有点难以管理。
我正在使用的一些文件大小为数百MB，或者更大。

I am needing to synchronize the file on a remote folder, and my current
solution, which simply copies the file if a date comparison or a
content comparison, becomes a bit unmanageable for very large files.
Some of the files I''m working with are hundreds of MB in size, or
larger.

为什么不看rsync程序：

http://samba.anu.edu.au/rsync/

但是对于那么多的数据，只是把它全部放在一个巨大的文件中不是

a如果你可以提供帮助，那就太棒了。也许您可以使用数据库。

Why don''t you look at the rsync program:

http://samba.anu.edu.au/rsync/

but for that much data, just plopping it all in a huge file is not
a great approach if you can help it. Maybe you can use a database instead.

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