Powershell 将比较对象的结果添加到数组

我有两个文件进行比较，一个是CSV文件，另一个是txt文件。CSV文件包含约5000台服务器的信息，txt文件仅包含约3000台服务器的名称。CSV中的列包括名称、操作系统和类型。这是我用来比较对象的方法：

$compareObject = Compare-Object -ReferenceObject $txtFile -DifferenceObject $csvFile.Name -IncludeEqual

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在这之后，我有三个选择。两个列表中的==、仅在txt文件中的=>和仅在csv文件中的=您希望通过管道将Compare Object的结果传输到endable SideIndicator的过滤，如下所示：

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如果$fields包含您的CSV标题，这可能太复杂了，但您可以这样做：

假设这是您的CSV文件：

"Name","OS","Type"
"htew804","Windows","WindowsAutherServer"
"wddg9028","Windows","WindowsAutherServer"
"other321","Windows","WindowsBackupServer"

这是文本文件的内容：

wddg9028
test1234
htew804

然后这个代码：

$csvFile = 'D:\blah.csv'
$txtFile = 'D:\names.txt'

# import the .csv file
$csv = Import-Csv -Path $csvFile
# read the .txt file which contains only server names, each on a separate line
$txt = Get-Content -Path $txtFile

$items = Compare-Object -ReferenceObject $txt -DifferenceObject $csv.Name -IncludeEqual -PassThru 
$result = foreach ($item in $items) {
    $name = $item.ToString()
    switch ($item.SideIndicator) {
        '<='  { 
            # the servername is only present in the text file
            [PSCustomObject]@{
                Name = $name
                OS = ''
                Type = ''
                SideIndicator = $item.SideIndicator
                Comment = "Name only found in $txtFile"
            }
            break
        }
        default  { 
            # '==' AND '=>': the servername is only present in the csv file or in both files
            $server = @($csv | Where-Object { $_.Name -eq $name })[0]
            [PSCustomObject]@{
                Name = $server.Name
                OS = $server.OS
                Type = $server.Type
                SideIndicator = $item.SideIndicator
                Comment = if ($item.SideIndicator -eq '==') { "Name found in both files" } else { "Name only found in $csvFile" }
            }
        }
    }
}
$result | Format-Table -AutoSize

产生以下结果：

如果要将此信息写入新的CSV文件，请将格式表-AutoSize更改为Export CSV-Path'D:\blah_updated.CSV'-NoTypeInformation

正在获取的示例文件，但正在导入两个文件-头文件名为的文本文件 和s-PassThru方法， 加上颠倒顺序，将csv文件作为参考 就这么简单：

$csvFile = Import-Csv .\sample.csv
$txtFile = Import-csv .\sample.txt -Header Name

Compare-Object -Ref $csvFile -Dif $txtFile -Property Name -IncludeEqual -PassThru

要获得所需的输出，请执行以下操作：

Name     OS      Type                SideIndicator
----     --      ----                -------------
wddg9028 Windows WindowsAutherServer ==
htew804  Windows WindowsAutherServer ==
test1234                             =>
other321 Windows WindowsBackupServer <=

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所以两人都从我这里得到+1。

不知何故，比较对象对我来说从来都不容易。。这绝对是最好的答案+1完美的解决方案！：

Name     OS      Type                SideIndicator Comment                        
----     --      ----                ------------- -------                        
wddg9028 Windows WindowsAutherServer ==            Name found in both files       
htew804  Windows WindowsAutherServer ==            Name found in both files       
other321 Windows WindowsBackupServer =>            Name only found in D:\blah.csv 
test1234                             <=            Name only found in D:\names.txt

$csvFile = Import-Csv .\sample.csv
$txtFile = Import-csv .\sample.txt -Header Name

Compare-Object -Ref $csvFile -Dif $txtFile -Property Name -IncludeEqual -PassThru

Name     OS      Type                SideIndicator
----     --      ----                -------------
wddg9028 Windows WindowsAutherServer ==
htew804  Windows WindowsAutherServer ==
test1234                             =>
other321 Windows WindowsBackupServer <=