Powershell 脚本搜索相似文件名

Question

I am trying to build a PowerShell script that can search for files with similar names inside of a folder.

The files will always have a similar name template:

filename(C).TIF
filename(M).TIF
filename(Y).TIF
filename(K).TIF

All I need to do is to extract the "filename", check if there are 4 similar ones (C,M,Y,K) and use it as a variable to move those files.

$files = Get-ChildItem -Path "E:\test" -Filter "*.TIF" |
    Foreach-Object {$_.BaseName} | Sort-Object -Unique 

$files = $files -replace ".{3}$" 

$names = (Get-Unique -InputObject $files)  
$names

The result looks like this:

jobname 
jobname 
jobname 
jobname 
test 
test 
test 
test

But I need to sort by unique and count them, maybe, before action.

Answer 1

But I need to sort by unique and count them, maybe, before action.

You definitely want the Group-Object cmdlet !

As the name suggests, it... groups objects , based on some common property:

$filesByCommonBaseName = Get-ChildItem -Path "E:\test" -Filter "*.TIF" |Group-Object { $_.BaseName -replace '.{3}$' }

---

Now that you have them grouped correctly, you can start operating on them as such:

foreach($entry in $filesByCommonBaseName){
    Write-Host "Operating on files starting with $($entry.Name)"
    if($entry.Count -eq 4){
        # we found four matches, delete them!
        $entry.Group |Remove-Item -Force
    }
}