Question

I have a CSV document that is of the following structure

Headers

Path,Publish,Hashlist,Package

Content Entries

C:\packages\word.docx, 10:14:17 on 17-08-2011, C:\packages\word.hash, C:\packages\word.zip

Now, I will have multiple lines of entries, but I only want to maintain one entry per path at a given time. So when I add a new entry for C:\packages\word.docx, I want to find and delete the line above. I can append the .CSV no problem in PowerShell, but am unsure how to identify the line based on the filepath, and remove/overwrite it.

Answer 1

Something like this maybe:

$csv = import-csv test.csv
$tobeupdated = $csv | ?{$_.Path -eq "pathyouarecurrentlyprocessing"}
if($tobeupdated){
    #update
    $tobeupdated.Publish = "blah blah"

} else{
    #add new
    $tobeupdated = New-Object Object 
    $tobeupdated | Add-Member -type NoteProperty -name Path -value "c:\something.docx"
    $tobeupdated | Add-Member -type NoteProperty -name Publish -value "10:14:17 on 17-08-2011"
    $tobeupdated | Add-Member -type NoteProperty -name Hashlist -value "C:\packages\word.hash"
    $tobeupdated | Add-Member -type NoteProperty -name Package -value "C:\packages\word.zip"
    $csv += $tobeupdated
}

$csv | export-csv test.csv -notype

The update part maybe tricky based on what you are doing. So it will be helpful if you give some code on what you are doing.