Compare two csv-files and remove the same values

This topic contains 1 reply, has 2 voices, and was last updated by  Dave Wyatt 4 years, 7 months ago.

  • Author
  • #11369

    Dominique Hofmann

    Hello Together
    I have two csv-files Path.csv and Report.csv and i want to compare the different paths, which are saved in both csv-files.
    And after it compared the csv-files i want to remove the same paths in each csv-file.
    I tried it with Select-object and where-object but it didn't worked.
    If somebody have an idea write me thanks

  • #11376

    Dave Wyatt

    There may be more efficient ways of doing this, but I'd use a combination of Compare-Object and the -notin or -notcontains operators, like this:

    $csvPath1 = '.\test.csv'
    $csvPath2 = '.\test2.csv'
    $propertyToCompare = 'Path'
    $csv1 = Import-Csv -Path $csvPath1
    $csv2 = Import-Csv -Path $csvPath2
    $duplicates = Compare-Object $csv1 $csv2 -Property $propertyToCompare -IncludeEqual -ExcludeDifferent -PassThru |
    Select-Object -ExpandProperty $propertyToCompare
    $csv1 |
    Where-Object { $_.$propertyToCompare -notin $duplicates } |
    Export-Csv -Path $csvPath1 -NoTypeInformation
    $csv2 |
    Where-Object { $_.$propertyToCompare -notin $duplicates } |
    Export-Csv -Path $csvPath2 -NoTypeInformation

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