在Linux（Ubuntu pwsh）上运行的PowerShell脚本，但在Windows上不运行

Question

The following powershell script is arranging the files by their extension in appropriate directory. What I did is first find all the unique extensions in the target folder and called copy for all those extensions but it doesn't work on Windows .I have used correct path for Windows.

Currently folders are being created but the file is not being copied from source folder to destination folder.

$source = "/home/shubham/ps/" #location of starting directory
$destination = "/home/shubham/ps/check"; #location where files will be   `copied to`
$extensionArray = @(Get-ChildItem ($source) |
                  Select-Object Extension |
                  Sort-Object Extension |
                  Get-Unique -AsString)
echo ($extensionArray[3])
[string[]]$l_array = ($extensionArray | Out-String -Stream) -notmatch '^$' |
                     select -Skip 2

for ($i=0; $i -lt $extensionArray.Length; $i++) {
    $x = $l_array[$i]

    $ext = "*" + "$x"

    #foreach ($x in $extension_array){
    echo ("*" + ($x))
    $newsrc = ($source) + "/" + ($ext)
    $files = @("", "*" + ($x)) #edit .xlsx to your desired extension
    $outputPath = ($destination) + "_" + ($x)

    New-Item -ItemType Directory -Force -Path ($outputpath);
    Copy-Item -Path $newsrc -Filter ($ext) -Destination $outputPath -Container 
}
echo "end"

Answer 1

When in doubt, read the documentation (emphasis mine):

-Path
Specifies, as a string array, the path to the items to copy.
Type: String[]
Position: 1
Default value: None
Accept pipeline input: True (ByPropertyName, ByValue)
Accept wildcard characters: False

Meaning paths like /home/shubham/ps/*.docx are not supported by Copy-Item . It probably works on Linux because the shell already expands the wildcard to a list of absolute paths before Copy-Item sees it.

Not to mention that your code is overly complicated. Something like this should suffice:

$src = '/home/shubham/ps/'
$dst = '/home/shubham/ps/check'

$files = Get-ChildItem $src

$files |
    Select-Object -Expand Extension -Unique |
    New-Item -Path $dst -Name {'_' + $_.TrimStart('.')} -Type Directory |
    Out-Null

$files | Copy-Item -Destination {Join-Path $dst ('_' + $_.Extension.TrimStart('.')} -Container