如何从目录中删除旧文件，同时在 Windows 上保留最新文件

How do I delete old files from a directory while keeping the most recent ones on Windows

提问by KiwiNige

Possible Duplicate:
Batch file to delete files older than N days

可能重复：
批处理文件以删除早于 N 天的文件

I want to run a scheduled windows task that deletes all files from a directory that are older than 2 weeks.

我想运行一个预定的 Windows 任务，该任务从目录中删除超过 2 周的所有文件。

The reason is that these are IIS and Tomcat logs that fill up my server, but I want to keep the most recent logs in case I need to investigate a problem.

原因是这些是填满我的服务器的 IIS 和 Tomcat 日志，但我想保留最新的日志，以防我需要调查问题。

Does any one know an easy way to do this?

有谁知道一种简单的方法来做到这一点？

Cheers

干杯

Nige

尼日

回答by subha

exact syntax:FORFILES /p d:\new /d -30 /m * /c "cmd /c del @file"

确切的语法：FORFILES /p d:\new /d -30 /m * /c "cmd /c del @file"

回答by Jason Bunting

Schedule a batch file to handle this.

安排一个批处理文件来处理这个问题。

This line will delete all files (*.*) in c:\mydirectory that are older than 14 days:

此行将删除 c:\mydirectory 中所有超过 14 天的文件 (*.*)：

FORFILES -pc:\mydirectory -s -m*.* -d-14 -c"DEL @FILE"

Put that in a text file, rename it to something like "deletefiles.bat" and schedule it.

把它放在一个文本文件中，将它重命名为“deletefiles.bat”之类的东西并安排它。

I haven't tested this, but should be easy enough to try.

我还没有测试过这个，但应该很容易尝试。

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EDIT: If you use this, make sure you understand what is happening - the -s flag tells it to recurse the subdirectories, and that may not be what you want to happen. Also, you may need to specify some flags for the DEL command too. :)

编辑：如果您使用它，请确保您了解发生了什么 - -s 标志告诉它递归子目录，这可能不是您想要发生的。此外，您可能还需要为 DEL 命令指定一些标志。:)

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EDIT: Realized that you need to download stuff from Microsoftin order for FORFILES to work. I like the accepted solution too, since you don't have to have anything special. The only problem is that it only happens every two weeks instead of running a process daily to remove all things older than 14 days. For what that's worth. :P

编辑：意识到您需要从 Microsoft 下载东西才能使 FORFILES 工作。我也喜欢公认的解决方案，因为您不必有任何特别之处。唯一的问题是它只每两周发生一次，而不是每天运行一个过程来删除所有超过 14 天的内容。为了什么，这是值得的。:P

回答by Mark Nold

The simplest way would be a .bat run file run weekly or monthly.

最简单的方法是每周或每月运行 .bat 运行文件。

cd \mylog\dir
mkdir archive
del /Q .\archive\*.log
move *.log .\archive

If you want something more complex look into downloading the cygwin tools to use un*x like commands, or possibly look into Powershell.

如果您想要更复杂的东西，请查看下载 cygwin 工具以使用 un*x 之类的命令，或者可能查看 Powershell。

回答by PabloG

With VBScript, adapted from ScriptingAnswers

使用 VBScript，改编自ScriptingAnswers

Dim fso, startFolder, OlderThanDate
Set fso = CreateObject("Scripting.FileSystemObject")

startFolder = "E:\temp"           ' folder to start deleting (subfolders will also be cleaned)

OlderThanDate = DateAdd("d", -07, Date)  ' 07 days (adjust as necessary)

DeleteOldFiles startFolder, OlderThanDate

Function DeleteOldFiles(folderName, BeforeDate)
    Dim folder, file, fileCollection, folderCollection, subFolder

    Set folder = fso.GetFolder(folderName)

    Set fileCollection = folder.Files

    For Each file In fileCollection
        If file.DateLastModified < BeforeDate Then
            ' fso.DeleteFile(file.Path)    # Modify this to delete after testing
            WScript.StdOut.WriteLine (file.Path)
        End If
    Next

    Set folderCollection = folder.SubFolders
    For Each subFolder In folderCollection
        DeleteOldFiles subFolder.Path, BeforeDate
    Next

End Function

You can run this script with CScript

您可以使用 CScript 运行此脚本

@Jason: nice utility, FORFILES from the Resource Kit

@Jason：不错的实用程序，来自 Resource Kit 的 FORFILES

回答by zigdon

It's fairly trivial to do if you have a perl (or similar) installed on the server:

如果您在服务器上安装了 perl（或类似的），这是相当简单的：

#!perl
foreach my $file (</path/to/logs/*.log>) {
  next unless -M $file > 14;
  print "Deleting $file...\n";
  # unlink $file or die "Failed to remove $file: $!";
}

The line that actually does the delete is commented out, since there might be kids in the house :)

实际删除的行被注释掉了，因为房子里可能有孩子:)

回答by Gulzar Nazim

Why dont you write a batch file or a powershell script and schedule it?

为什么不编写批处理文件或powershell脚本并安排它？

Scriptfor deleting files older than a specified date.

用于删除早于指定日期的文件的脚本。