PowerShell 7.3 - implementing Importing CSV Files with Varying Column Counts
I need some guidance on I need some guidance on Quick question that's been bugging me - I'm working with PowerShell 7.3 to process multiple CSV files that I receive daily from different sources, and I'm working with a scenario when it comes to importing them. Some of these CSVs have different column counts, which leads to unexpected behavior when I try to import them using `Import-Csv`. For instance, when a CSV file has fewer columns than expected, I get an behavior saying "want to index into a null array" when I attempt to manipulate the data later in my script. Here's a simplified version of my code: ```powershell $csvFiles = Get-ChildItem -Path 'C:\Data\' -Filter '*.csv' $result = @() foreach ($file in $csvFiles) { $data = Import-Csv -Path $file.FullName if ($data.Count -gt 0) { $result += $data } else { Write-Host "No data found in $($file.Name)" } } # Trying to access a specific property foreach ($entry in $result) { Write-Host $entry.SomeColumn } ``` The question is that if `SomeColumn` does not exist in a specific CSV file, it throws an behavior. I have tried using `-ErrorAction SilentlyContinue` with `Import-Csv`, but that just suppresses the behavior without solving the underlying scenario of inconsistent columns. I need a way to handle these varying columns gracefully, perhaps by checking if the property exists before trying to access it. I've looked into using `Select-Object` to filter out the properties that exist, but I'm not sure how to implement that effectively in my loop. Any suggestions on how to manage this scenario would be greatly appreciated! Any ideas what could be causing this? I'm on CentOS using the latest version of Powershell. Has anyone dealt with something similar?