Question

$csv = Get-Content c:\users\user\downloads\OutofContact.csv

foreach ($computer in $csv)
{
    try{
        $report = New-Object -TypeName PSObject -Property @{
                ComputerName = (Resolve-DnsName $computer).Name
                IPAddress = (Resolve-DnsName $computer).IPAddress
        }
        $report | select-object -Property ComputerName, IPAddress | Export-Csv -Path Results.csv -notype -append
    }catch{
        Write-Error "$computer not found" | Export-Csv -Path Results.csv -notype -append 
    }
}

我正在使用上面的代码来检查DNS条目以获取计算机列表。 DNS中不存在某些计算机，并且将引发错误。我希望这些机器将错误写入CSV，但是它们只是显示为空白行。

如何获取也要写入CSV的错误？

Answer 1

我将重构和优化重复的调用，只在最后添加一个对象...

类似这样的东西：

#$csv = Get-Content c:\users\user\downloads\OutofContact.csv
# test
$csv = @('localhost', 'doesnotexist', 'localhost', 'doesnotexist')

$allReports = [System.Collections.ArrayList]::new()

foreach ($computer in $csv)
{
    $report = [pscustomobject]@{
                'ComputerName' = $computer
                'IPAddress' = 'none'
                'Status' = 'none'
                }

    try
    {
        # this can return multiple entries/ipaddresses
        $dns = Resolve-DnsName $computer -ErrorAction Stop | Select -First 1
        $report.ComputerName = $dns.Name
        $report.IPAddress = $dns.IPAddress
        $report.Status = 'ok'
    }
    catch
    {
        Write-Error "$computer not found"
    }
    finally
    {
      $null = $allReports.Add($report);
    }
}

# write to csv file once...
$allReports | Export-Csv -Path c:\temp\Results.csv -NoTypeInformation  #??? keep this? -Append

您将需要遍历代码并调试并更改为特定要求。

在Powershell中将错误写入CSV

1 个答案: