如何使用powershell检查重复的多个文件？

我想检查重复的文件。如果文件的状态像这样，则表示重复。名称相同但扩展名不同

AAA18WWQ6BT602.PRO
AAA18WWQ6BT602.XML

我可以用我的脚本解决这个问题。但如果我有超过1.XML的文件，我就有问题了

AAA18WWQ6BT602.PRO
AAA18WWQ6BT602.XML
AAA18WWQ6BT601.XML
AAA18WWQ6BT604.XML

在这种情况下，它不会检测到文件

AAA18WWQ6BT602.PRO

和

AAA18WWQ6BT602.XML

重复。 任何人都可以帮我。 谢谢

---

-Include

参数仅在

Get ChildItem

上的路径以

\*

结尾或使用了

-Recurse

开关时有效

以下操作应满足您的要求：

$flagFolder = 'D:\*'
$dupeReport = 'D:\Flag_Duplicate.txt'
$duplicates = Get-ChildItem -Path $flagFolder -File -Include '*.xml', '*.pro' | 
              Group-Object -Property BaseName | Where-Object { $_.Count -gt 1 }

if ($duplicates) {
    # output the duplicate XML to Flag_Duplicate.txt
    $duplicates.Group | Where-Object {$_.Extension -eq '.xml' } | ForEach-Object {
        $_.FullName | Out-File -FilePath $dupeReport -Append
    }
    # do the rest of your code
    Write-Host "Flag duplicated, continue for Error_Monitoring" 
    Error_Monitoring
}
else {
    Write-Host "Flag does not duplicate, continue the process"
}

---

您的脚本没有正确迭代。您需要有一个迭代来检查。在我看来，

测试路径

逻辑看起来很混乱。我尽量保留你的代码

此脚本根据任何后缀副本检查任意xml basename文件名（不仅仅是

pro

）：

---

@SBR不客气。我现在注意到，这本可以做得更有效。只有在将所有文件加载到数组中时才能执行

Get ChildItem

。接下来，您将筛选xml文件。这将为您节省一个文件系统迭代，这个迭代往往很慢。谢谢@tukan。如果你不介意的话，我可以帮你回答我的另一个问题。谢谢。

$flagFolder = 'D:\*'
$dupeReport = 'D:\Flag_Duplicate.txt'
$duplicates = Get-ChildItem -Path $flagFolder -File -Include '*.xml', '*.pro' | 
              Group-Object -Property BaseName | Where-Object { $_.Count -gt 1 }

if ($duplicates) {
    # output the duplicate XML to Flag_Duplicate.txt
    $duplicates.Group | Where-Object {$_.Extension -eq '.xml' } | ForEach-Object {
        $_.FullName | Out-File -FilePath $dupeReport -Append
    }
    # do the rest of your code
    Write-Host "Flag duplicated, continue for Error_Monitoring" 
    Error_Monitoring
}
else {
    Write-Host "Flag does not duplicate, continue the process"
}

$Flag_Path = "C:\dir_to_be_checked"
$xmlFilesArray = @()
$allFilesExceptXml = @() # all files excluding xml files

# Get all the xml files
Get-ChildItem -Path $Flag_Path -Include "*.xml" | ForEach-Object { $xmlFilesArray += $_.basename }
# Get all files from the directory the xml files
Get-ChildItem -Path $Flag_Path -Exclude "*.xml" | ForEach-Object { $allFilesExceptXml += $_.basename }

# Iterate over list of files names without suffix
ForEach ($xmlFile in $xmlFilesArray) { 
    ForEach ($fileToCheck in $allFilesExceptXml) {
        If ($xmlFile -eq $fileToCheck) {
            # logging the duplicate file (specifying utf8 or the output would be UTF-16)
            Write-Output "$Flag_Path\$xmlFile.xml" | Out-File -Append -Encoding utf8 $Flag_Path\Flag_Duplicate
            Write-Host "Flag duplicated, continue with duplicate search" 
            # pause
            Write-Host "Press any key to continue ..."
            $x = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
            Error_Monitoring
        } Else {
            Write-Host "Flag is not duplicated.  Continue with the search."
        }
    }
}