Listing file information filtered on values in a file

Question

Hi,

I would like to list sizes on all files in a directory, but the listed file names must match filenames picked up from a file.

Basic information file size from this;

Get-ChildItem -Path "\servername\DATA\files" -File | Select-Object Name, Length | Export-Csv -Path "C:\Temp\FileSizeResult.txt" -NoTypeInformation

But the files I am picking up should match the file names I have listed in the file [FileNames.txt], looking like this:
File2024.txt
File2025.txt
File2026.txt
...and so on.

Any help from here?
Thanks

Answer 1

@MotoX80 Hmmmm . . . I think that your answer (which works) is one where the use of a pipeline isn't warranted. While the number of files to be examined is probably pretty small using the pipeline won't have any noticeable effect on runtime, the use of the Where-Object isn't adding anything since the Get-ChildItem is going to get the name of the file from the pipelined Get-Content.

I suppose this might be a matter of coding style, though.

Here's another way to get the same results:

$Files = get-content .\test.txt
$Files  # Just to show the files to be examined. Remove this if you don't want to see that.
Foreach ($File in $Files){
    Select-Object -InputObject (get-childitem $File) -Property Name, Length
}

Note: If you don't want to show the contents of the file .\test.txt you make the code even shorter:

Foreach ($File in (get-content .\test.txt)){
    Select-Object -InputObject (get-childitem $File) -Property Name, Length
}

Answer 2

Try something like this. (Version 2.0)

$Files = get-content .\test.txt 
get-childitem  | where-object -Property Name -in $Files  | Select-Object Name, Length