Compare Two CSVs, match the columns on 2 or more Columns, export specific columns from both csvs with powershell

Question

i Have 2 CSV\'s

left.csv

Ref_ID,First_Name,Last_Name,DOB
321364060,User1,Micah,11/01/1969
946497594,User2,Acker,05/28/1960
887327716,User3,Aco,06/26/1950         


        

Answer 1

adding answer i found:

$left = Import-Csv .\left.csv
$right = Import-Csv .\right.csv

$right | foreach { 
    $r = $_; 
    $left | where{ $_.First_Name -eq $r.First_Name -and $_.Last_Name -eq $r.Last_Name -and $_.DOB -eq $r.DOB } | 
        select Ref_Id, 
            First_Name, 
            Last_Name, 
            DOB, 
            @{Name="City";Expression={$r.City}}, 
            @{Name="Document_Type";Expression={$r.Document_Type}}, 
            @{Name="FileName";Expression={$r.FileName}}
} | format-table