Powershell 脚本自定义对象

Question

下面的数据集存储的是文本文件，第一个是服务器名称，第二个是日期，第三个是补丁历史。

WSUSCL02-2012

Monday, August 10, 2020 5:03:08 PM



X Status     KB          Size Title                                            
- ------     --          ---- -----                                            
2 Accepted   KB3172729  10 MB Security Update for Windows Server 2012 R2 (KB...
2 Accepted   KB3175024  12 MB Security Update for Windows Server 2012 R2 (KB...
3 Downloaded KB3172729  10 MB Security Update for Windows Server 2012 R2 (KB...
3 Downloaded KB3175024  12 MB Security Update for Windows Server 2012 R2 (KB...
4 Installed  KB3172729  10 MB Security Update for Windows Server 2012 R2 (KB...
4 Installed  KB3175024  12 MB Security Update for Windows Server 2012 R2 (KB...



WSUSCL01-2012

Monday, August 10, 2020 5:03:01 PM



X Status     KB          Size Title                                            
- ------     --          ---- -----                                            
2 Accepted   KB2962409  50 MB Update for Windows Server 2012 R2 (KB2962409)    
2 Accepted   KB3175024  12 MB Security Update for Windows Server 2012 R2 (KB...
3 Downloaded KB2962409  50 MB Update for Windows Server 2012 R2 (KB2962409)    
3 Downloaded KB3175024  12 MB Security Update for Windows Server 2012 R2 (KB...
4 Installed  KB2962409  50 MB Update for Windows Server 2012 R2 (KB2962409)    
4 Installed  KB3175024  12 MB Security Update for Windows Server 2012 R2 (KB...

以上是存储在文本文件中的数据集，要求是解析数据并选择 servername 、 date 、 patch 并将该数据放入自定义 power shell 对象中，名称为服务器名称，日期，补丁细节。请帮我做这个

Answer 1

使用 switch -Regex -File 遍历文本文件中的每一行应该可以解决问题。

下面的代码解析出所有个字段，但是您可以在结果中注释掉您不希望出现的任何属性

$result = switch -Regex -File 'D:\Test\patches.txt' {
    '^[-\w]+$' { $server = $_ }
    '[AP]M$'   { $date = [datetime]::ParseExact($_, 'F', [cultureinfo]'en-US') }
    '^(\d+)\s+(\w+)\s+(KB\d+)\s+(\d+\s[KM]B)\s+(.+)' {
        # create and output an object
        [PsCustomObject]@{
            Server = $server
            Date   = $date
            X      = $matches[1]
            Status = $matches[2]
            KB     = $matches[3]
            Size   = $matches[4]
            Title  = $matches[5]
        }
   }
}

# output on screen
$result | Format-Table -AutoSize

# output to CSV file
$result | Export-Csv -Path 'D:\Test\patchresults.csv' -NoTypeInformation

使用您的示例文件输出

Server        Date               X Status     KB        Size  Title                                            
------        ----               - ------     --        ----  -----                                            
WSUSCL02-2012 10-8-2020 17:03:08 2 Accepted   KB3172729 10 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL02-2012 10-8-2020 17:03:08 2 Accepted   KB3175024 12 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL02-2012 10-8-2020 17:03:08 3 Downloaded KB3172729 10 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL02-2012 10-8-2020 17:03:08 3 Downloaded KB3175024 12 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL02-2012 10-8-2020 17:03:08 4 Installed  KB3172729 10 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL02-2012 10-8-2020 17:03:08 4 Installed  KB3175024 12 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL01-2012 10-8-2020 17:03:01 2 Accepted   KB2962409 50 MB Update for Windows Server 2012 R2 (KB2962409)    
WSUSCL01-2012 10-8-2020 17:03:01 2 Accepted   KB3175024 12 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL01-2012 10-8-2020 17:03:01 3 Downloaded KB2962409 50 MB Update for Windows Server 2012 R2 (KB2962409)    
WSUSCL01-2012 10-8-2020 17:03:01 3 Downloaded KB3175024 12 MB Security Update for Windows Server 2012 R2 (KB...
WSUSCL01-2012 10-8-2020 17:03:01 4 Installed  KB2962409 50 MB Update for Windows Server 2012 R2 (KB2962409)    
WSUSCL01-2012 10-8-2020 17:03:01 4 Installed  KB3175024 12 MB Security Update for Windows Server 2012 R2 (KB...

^{P.S。我的系统是荷兰语，所以显示的默认日期格式是 'dd-M-yyyy HH:mm:ss'}

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