最有效的方式使用C＃找到磁盘上的所有exe文件？ [英] Most efficient way to find all exe files on disk using C#?

问题描述

什么是用C＃找到磁盘上的所有exe文件的最有效的方法是什么？

有将在程序的后台线程完成所以磁盘使用率应该尽可能地小。

It will be done in background thread in program so disk usage should be as small as possible.

推荐答案

您所提供的链接是在C＃（与.NET 4.0）最有效的方法：
Directory.EnumerateFiles方法

The link you provided is the most efficient way in C# (with .Net 4.0): Directory.EnumerateFiles Method

的.NET之前版本必须使用造成大硬盘内存问题一个较慢的方法，@hatchet表现出一个很好的例子：<一href=\"http://stackoverflow.com/questions/724148/is-there-a-faster-way-to-scan-through-a-directory-recursively-in-net\">Is有通过目录递归.NET？

Prior versions of .Net had to use a slower method that caused memory issues on large drives, @hatchet showed a great example: Is there a faster way to scan through a directory recursively in .NET?

作为乔恩斯基特提到这里，我不会建议使用TPL：
<一href=\"http://stackoverflow.com/questions/4149873/task-parallel-library-for-directory-traversal#comment14095131_4149873\">Task对于目录遍历并行库

I wouldn't suggest using the TPL as Jon Skeet mentions here: Task Parallel Library for directory traversal

如果你看到这个 MSDN链接第一个注释：迭代文件目录与平行的类我不甚至觉得微软曾与该TPL方法无论成功。

If you see the first comment in this MSDN link: Iterate File Directories with the Parallel Class I dont even think Microsoft had success with this TPL method either.

其他的建议，我已经使用LOGPARSER的，您可以用C＃中使用它！它是一个免费的微软产品，但我不知道如何重新DIST权限，我不得不把它列入我的包分开我最后一次使用它。它充分的蝇类，比飞驰的列车还快！

The other suggestion I have is using LogParser and you can use it with C#! Its a free Microsoft product but I'm not sure about re-dist permissions, I had to include it in my package separately last time I used it. It full on flys, faster than a speeding train!

按@spender评论我发现了一个日志分析器例如的日期查找文件180天以上，你可以尝试一下，如果它有用适应它：

As per @spender comment I found a Log Parser example that finds files dated 180 days and older, you could try it out and adapt it if its useful:

SELECT
    ContentPath, [Days (Old)], FileName, [Creation Date Time]
    USING creationtime AS [Creation Date Time],
    TO_DATE([Creation Date Time]) AS Cdate,
    SUB(TO_LOCALTIME(SYSTEM_TIMESTAMP()), Cdate) AS Days,
    DIV(TO_INT(Days),86400) As [Days (Old)],
    EXTRACT_PATH(TO_LOWERCASE(path)) AS ContentPath,
    TO_LOWERCASE(name) AS FileName
FROM %source% 
WHERE
  (attributes NOT LIKE 'D%')
AND
  ([Days (Old)] >= TO_INT('%day%'))
ORDER BY [Creation Date Time] DESC

％源％可能是类似于C：\\ *。exe文件如图所示的参数C：\\ TEMP \\ *。*。保存上面cc.sql，使用以下语法运行它：

%source% could be something like c:\*.exe as shown in the argument c:\temp\*.*. Save the above as cc.sql, run it with the following syntax:

 C:\Temp\Tools\Logparser>LogParser.exe file:cc.sql?source="c:\temp\*.*"+day="180"  -i:FS -preserveLastAccTime -rtp:-1

修改

感谢upvotes家伙！我在2005年（.NET 2.0发布前），因为日志分析器建议是如此受欢迎，使这个事件分析器应用我想我会分享您可以在.NET中使用LOGPARSER的方式

Thanks for the upvotes guys! I made this Event Analyser app in 2005 (before .net 2.0 was released) and since the Log Parser suggestion was so popular I thought I'd share the way you can use LogParser in .Net

好乡亲在 HTTP：//visuallogparser.$c$cplex.com/ 有
  与源$ C ​​$ C提供给我们。

The good folks over at http://visuallogparser.codeplex.com/ have provided us with the source code.

打开 VisualLogParser 在VS2010的解决方案，忽略有关调试的提示，该解决方案加载后， F5，在此查询和preSS去设置组合框以FS（文件系统），粘贴。

Open the VisualLogParser solution in VS2010, ignore the prompt about debugging, after the solution loads, F5, set the combo-box to FS (FileSystem), paste in this query and press go.

SELECT
    ContentPath, [Days (Old)], FileName, [Creation Date Time]
    USING creationtime AS [Creation Date Time],
    TO_DATE([Creation Date Time]) AS Cdate,
    SUB(TO_LOCALTIME(SYSTEM_TIMESTAMP()), Cdate) AS Days,
    DIV(TO_INT(Days),86400) As [Days (Old)],
    EXTRACT_PATH(TO_LOWERCASE(path)) AS ContentPath,
    TO_LOWERCASE(name) AS FileName
FROM 'c:\*.exe' 
WHERE
  (attributes NOT LIKE 'D%')
AND
  ([Days (Old)] >= TO_INT('180'))
ORDER BY [Creation Date Time] DESC

的与此同时，你可能希望运行的任何其他.NET应用程序，搜索目录，并比较结果!!! 的

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