Powershell pipeline to reference output

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Hello,

I'd like to process several directories enumerating their files, passing the file name to Split-Path and the output from Split-Path to a non-cmdlet program.

I can get the directories and enumerate them passing to Split-Path to just display the fine name minus extension and path.

Question is how do I reference the output on a command line?

For the first part I use the following and it works as expected:

PowerShell

$source = @('Dir 1', 'Dir 2', 'Dir 3')

foreach($x in $source) {get-childitem -Path $x | split-path -leafbase}

Now I'd like to pass the output to a command line, as an example:

Write-Output "File Name: " ?output here?

Cannot figure it out.
Many thanks.

What I have tried:

<pre lang="PowerShell">$source = @('Dir 1', 'Dir 2', 'Dir 3')

foreach($x in $source) {get-childitem -Path $x | split-path -leafbase}

Posted 12-Sep-24 2:27am

Michael_Davies

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2 solutions

Solution 2

Oopps. I left the Split-Path off of my test code. That's goign to give you the filepath and, ultimately, the string that contains the filename.

So, to figure out what you're getting back from a command, you can see what the object is using something like this:

PowerShell

$x = ...whatever command...
Write-Output $x.GetType()

That Get-Child|Split-Path command isn't going to return a single filename. It'll return an array of FileInfo or DirectoryInfo objects, one array for each source directory. You can see that with the following modifications :

PowerShell

$source = @('Dir 1', 'Dir 2', 'Dir 3') foreach ($x in $source) { $items = Get-ChildItem -Path $x | Split-Path -Leaf Write-Output "ITEMS TYPE: " $items.GetType() Write-Output $items Write-Output foreach ($item in $items) { Write-Output "ITEM TYPE: " $item.GetType() Write-Output $item } }

So, to get the actual name of the directory, you would have to get its Name property. Replace the above inner foreach with this:

PowerShell

foreach ($item in $items) { Write-Output $item.Name }

Posted 12-Sep-24 3:37am

Dave Kreskowiak

Updated 12-Sep-24 3:56am

v2

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Pete O'Hanlon · Accepted Answer · 2024-09-12T03:24:00

Solution 1

Something like this perhaps?

PowerShell

$source = @('Dir 1', 'Dir 2', 'Dir 3')

foreach ($x in $source) {
    $files = Get-ChildItem -Path $x -ErrorAction SilentlyContinue | Split-Path -LeafBase
    foreach ($file in $files) {
        Write-Output "File Name: $file"
    }
}

Posted 12-Sep-24 3:24am

Pete O'Hanlon