Обьединение дубликатов строк по определённому правилу

Get-Eventlog system -after $yesterday -before $today -Entry error -comp $comp | Select-Object Machinename,Timewritten,Source,EventID,Message | Export-Csv -path $patha -Append -notypeinformation -UseCulture -Encoding utf8;

$computer = 'ServerName'
$today = Get-Date
$yesterday = $today.AddDays(-1)
 
Get-Eventlog -LogName system -After $yesterday -Before $today -EntryType Error -ComputerName $computer | Select-Object Machinename,Timewritten,Source,EventID,Message `
| Group-Object Message | select Count -ExpandProperty Group | sort Message -Unique | sort Timewritten `
| Out-GridView

$compini = "C:\Scripts\Servlog\complist.ini";
$complis = Get-Content $compini;
$today = get-date;
$yesterday = (get-date).AddDays(-1);
$v4era = $yesterday.ToString("ddMMyy");
$out2 = @{};
$out = @{};
$patha = "C:\Scripts\Servlog" + $v4era + ".csv";
foreach ($comp in $complis){
$csv = Get-Eventlog application -after $yesterday -before $today -Entry error -comp $comp | Select-Object Machinename,Timewritten,Source,EventID,Message 
$csv | ForEach-Object {
$id = [string]$csv.Message
$out[$id]=[string]$_.timewritten + "," + $out[$id]
if ($out2.ContainsKey($id)) {$line = $_.MachineName +";"+ $out[$id] + ";"+ $_.Source +";"+ $_.EventID +";"+ $_.Message}
else {$line = $_.MachineName +";"+ $_.TimeWritten + ";"+ $_.Source +";"+ $_.EventID +";"+ $_.Message}
$out2[$id]=$line
}
}

$complis = Get-Content -Path "C:\Scripts\Servlog\complist.ini"
$today = get-date
$yesterday = (get-date).AddDays(-1)
$v4era = $yesterday.ToString("ddMMyy")
$patha = "C:\Scripts\Servlog" + $v4era + ".csv"
$out = @{}
 
foreach ($comp in $complis)
{
 
    foreach ($event in (Get-Eventlog application -after $yesterday -before $today -Entry error -comp $comp))
    {
    $id = $event.Message
    
    #$message = $event.Message.Replace("`n",'')
    $message = $event.Message.Split() -join ' '
        
    if ($out.ContainsKey($id))
        {
        $DupEvent = $out[$id].split(';')[1]
        $NextTimeWritten = $DupEvent + ',' + $event.TimeWritten.ToString()
        $line = $event.MachineName,$NextTimeWritten,$event.Source,$event.EventID,$message -join ';'
        }
    else {$line = $event.MachineName,$event.TimeWritten.ToString(),$event.Source,$event.EventID,$message -join ';'}
    
    $out[$id] = $line
    }
 
}
 
$out.Values | Set-Content -Path $patha -Force:$true -Encoding UTF8

$test = "SnapManager for SQL Server completed the backup operations with error(s) on the following number of databases on server:
 
Succeeded: 10   Not run: 2  Total databases detected: 12
 
Note: 'Not Run' is considered as an error."
 
$message = $test -replace "`n|`r|`t"
$message

$test -replace "`n|`r|`t"," "

$message = $event.Message.Split() -join ' '

$message = $event.Message -replace "`n|`r|`t"," "