PS Script is exporting an empty CSVs

Question

I am having a helluva time trying to understand why this script is not working as intended. It is a simple script in which I am attempting to import a CSV, select a few colu

Answer 1

As Matt commented, your last $PSItem ($_) not related to the Get-ChildItem anymore but for the Select-Object cmdlet which don't have a FullName Property

You can use differnt foreach approach:

$RootPath = "D:\SomeFolder"
$csvFilePaths = Get-ChildItem $RootPath -Recurse -Include *.csv

foreach ($csv in $csvFilePaths)
{
Import-CSV $csv.FullName |
Select-Object Test_Name,Test_DataName,Device_Model,Device_FW,Data_Avg_ms,Data_StdDev | 
Export-Csv $csv.FullName -NoType -Force
}

Or keeping your code, add $CsvPath Variable containing the csv path and use it later on:

$RootPath = "D:\SomeFolder"
Get-ChildItem $RootPath -Recurse -Include *.csv | ForEach-Object{
$CsvPath = $_.FullName
Import-CSV $CsvPath |
Select-Object Test_Name,Test_DataName,Device_Model,Device_FW,Data_Avg_ms,Data_StdDev | 
Export-Csv $CsvPath -NoType -Force
}