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如何使用Powershell迭代特定键的文本文件并保存在变量中？

分类：编程问答

如何解决如何使用Powershell迭代特定键的文本文件并保存在变量中？

我正在尝试创建一个脚本，该脚本将遍历文本文件

代码：

# 1- Connect to Azure Account

$username = "abc@xyz.com"
$pass = ConvertTo-securestring "abc123" -AsPlainText -Force
$cred = New-Object PSCredential($username,$pass)

#Connect-AzureRmAccount -Credential $cred | out-null
Connect-AzAccount -Credential $cred | out-null

# 2 - Input Area

$subscriptionName = 'Data Analytics'
$resourceGroupName = 'DataLake-Gen2'
 $dataFactoryName = 'dna-production-gen2'
$runStartDateTimeUTC = '2020-09-12T06:40:00Z'

# 3 - (All Triggers information)

$ErrorActionPreference="SilentlyContinue"
Stop-Transcript | out-null
$ErrorActionPreference = "Continue"
Start-Transcript -path D:\Powershell\TriggerInfo.txt -append
Get-AzDataFactoryV2Trigger -ResourceGroupName $resourceGroupName -DataFactoryName $dataFactoryName
Stop-Transcript  

# 3.1 (Get the content in a variable)

Get-Content "D:\Powershell\TriggerInfo.txt" | ForEach-Object {
$trg_name = $_.TriggerName
} $trg_name

# 4 - (Write the output to a text file,The Get-AzDataFactoryV2TriggerRun command returns detailed information about trigger runs for the specified trigger 
#  in the given timeframe.)

foreach ($trg in $trg_name) {

$ErrorActionPreference="SilentlyContinue"
Stop-Transcript | out-null
$ErrorActionPreference = "Continue"
Start-Transcript -path D:\Powershell\output.txt -append
Get-AzDataFactoryV2TriggerRun -ResourceGroupName $resourceGroupName -DataFactoryName $dataFactoryName -TriggerName $trg -TriggerRunStartedAfter "2020-09-01" -TriggerRunStartedBefore "2020-09-17"
Stop-Transcript

"$trg = " + $trg.length
}

TriggerInfo.txt：

TriggerName       : TRG_CM_TBLEnhanced_prod
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CM_tblEnhanced_QA
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CustCaseData
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_RP_Dashboard_TAE
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

有什么帮助吗？谢谢

更新代码 

    # 3.1 (Get the content in a variable)
    
    # Get-Content "D:\Powershell\TriggerInfo.txt" | ForEach-Object {
    # $trg_name = $_.TriggerName
    # } $trg_name
    
    # $trg = (Get-AzDataFactoryV2Trigger -ResourceGroupName $resourceGroupName -DataFactoryName $dataFactoryName).TriggerName
    
    $log = Get-Content -Path 'D:\Powershell\TriggerInfo.txt' -Raw
    $result = ($log -split '(\r?\n){2,}' | Where-Object {$_ -match '\S'}) | ForEach-Object {
    [PsCustomObject](($_ -split 'TriggeredPipelines')[0] -replace ' : ','=' | ConvertFrom-StringData)  |
        Select-Object 'TriggerName'
    }
    
    # output on screen
    $result | Format-Table -AutoSize
    
    # write to CSV file
    $result | Export-Csv -Path 'D:\Powershell\TriggerInforesult.csv' -Encoding UTF8 -NoTypeinformation -Force
    
    $trg_name = (Import-Csv -Path 'D:\Powershell\TriggerInforesult.csv').TriggerName
    
    # 4 - (Write the output to a text file,The Get-AzDataFactoryV2TriggerRun command returns detailed information about trigger runs for the specified trigger 
    #  in the given timeframe.)
    
    foreach ($trigger in $trg_name) {
    
    $ErrorActionPreference="SilentlyContinue"
    Stop-Transcript | out-null
    $ErrorActionPreference = "Continue"
    Start-Transcript -path D:\Powershell\output.txt -append
    
    Get-AzDataFactoryV2TriggerRun -ResourceGroupName $resourceGroupName -DataFactoryName $dataFactoryName -TriggerName $trigger -TriggerRunStartedAfter "2020-09-01" -TriggerRunStartedBefore "2020-09-17"
    
    Stop-Transcript
    
    "$trigger = " + $trigger.length
    }

****Recent Update****

TriggerName       : TRG_CM_TBLEnhanced_prod
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CM_tblEnhanced_QA
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CustCaseData
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_RP_Dashboard_TAE
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : GMB_Trigger
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.BlobEventsTrigger
RuntimeState      : Started

TriggerName       : TRG_RP_Optimizely_Import
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_USBusinessData_Monthly
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_Generic_CSV_To_DW
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Stopped

TriggerName       : TRG_CM_Dimension_Unit
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CM_PricingQuoteApproval
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

Transcript stopped,output file is D:\Powershell\new\TriggerInfo.txt
ConvertFrom-StringData : Data line '**********************' is not in 'name=value' format.
At line:36 char:37
+     $data  = $_ -replace ':','=' | ConvertFrom-StringData
+                                     ~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [ConvertFrom-StringData],PSInvalidOperationException
    + FullyQualifiedErrorId : InvalidOperation,Microsoft.PowerShell.Commands.ConvertFromStringDataCommand

Get-AzDataFactoryV2TriggerRun : Cannot validate argument on parameter 'DataFactoryName'. The argument is null or empty. Provide an argument that is not null or empty,and then try the
command again.
At line:47 char:34
+    Get-AzDataFactoryV2TriggerRun @splat
+                                  ~~~~~~
    + CategoryInfo          : InvalidData: (:) [Get-AzDataFactoryV2TriggerRun],ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterargumentValidationError,Microsoft.Azure.Commands.DataFactoryV2.GetAzureDataFactoryTriggerruncommand

ConvertFrom-StringData : Data line '**********************' is not in 'name=value' format.
At line:36 char:37
+     $data  = $_ -replace ':',Microsoft.PowerShell.Commands.ConvertFromStringDataCommand

TriggerInfo.txt

Windows PowerShell成绩单开始 开始时间：20201017093947 使用者名称：XXXXXX \ XXXXXX RunAs用户：XXXXXX \ XXXXXX 配置名称： 机器：INnopHLTXETR138（Microsoft Windows NT 10.0.17134.0） 主机应用程序：C：\ Windows \ System32 \ WindowsPowerShell \ v1.0 \ powershell.exe 进程ID：20340 PS版本：5.1.17134.858 PSEdition：台式机 PSCompatibLeversions：1.0、2.0、3.0、4.0、5.0、5.1.17134.858 生成版本：10.0.17134.858 版本号：4.0.30319.42000 WSManStackVersion：3.0 PSRemotingProtocolVersion：2.3 序列化版本：1.1.0.1

脚本已启动，输出文件为D：\ Powershell \ new \ TriggerInfo.txt 

TriggerName       : TRG_CM_TBLEnhanced_prod
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CM_tblEnhanced_QA
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CustCaseData
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_RP_Dashboard_TAE
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : GMB_Trigger
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.BlobEventsTrigger
RuntimeState      : Started

TriggerName       : TRG_RP_Optimizely_Import
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_USBusinessData_Monthly
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_Generic_CSV_To_DW
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Stopped

TriggerName       : TRG_CM_Dimension_Unit
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

TriggerName       : TRG_CM_PricingQuoteApproval
ResourceGroupName : DataLake-Gen2
DataFactoryName   : dna-production-gen2
Properties        : Microsoft.Azure.Management.DataFactory.Models.ScheduleTrigger
RuntimeState      : Started

**********************
Windows PowerShell transcript end
End time: 20201017093951
**********************

解决方法

如上所述，Get-Content将文件读取为字符串数组。如果要使用问题中提供的示例文本文件，则需要将其解析为对象数组，以选择要过滤掉的一个或多个属性。

但是，在您的previous question中，您已经完成了艰苦的工作，并拥有一个结构化CSV文件，其中包含您想要的所有属性，因此建议您将其用作输入。

然后，代码可以很简单：

$trg_name = (Import-Csv -Path 'TheResultsFileFromEarlierQuestion.CSV').TriggerName

并将其用于将$trigger数组保存到文件中，或将其用于迭代：

$trg_name | ForEach-Object {
    # using splatting here for prettier code
    $splat = @{
        ResourceGroupName       = $resourceGroupName
        DataFactoryName         = $dataFactoryName
        TriggerName             = $_
        TriggerRunStartedAfter  = "2020-09-01"
        TriggerRunStartedBefore = "2020-09-17"
    }
    Get-AzDataFactoryV2TriggerRun @splat
} | Export-Csv -Path 'PathToTheOutputFile.csv' -Encoding UTF8 -NoTypeInformation

P.S。如果$resourceGroupName和$dataFactoryName也应该来自输入的CSV文件，那么您根本不需要$trg_name，只需执行以下操作即可：

Import-Csv -Path 'TheResultsFileFromEarlierQuestion.CSV' | ForEach-Object {
    $splat = @{
        ResourceGroupName       = $_.ResourceGroupName
        DataFactoryName         = $_.DataFactoryName
        TriggerName             = $_.TriggerName
        TriggerRunStartedAfter  = "2020-09-01"
        TriggerRunStartedBefore = "2020-09-17"
    }
    Get-AzDataFactoryV2TriggerRun @splat
} | Export-Csv -Path 'PathToTheOutputFile.csv' -Encoding UTF8 -NoTypeInformation

，这将是步骤3.1和步骤4的完整代码

修改

根据您的评论，我了解到您不能使用之前创建的csv文件，并且您在显示给我们的内容上一直停留在输入文本文件中。

使用起来也不是很难：

# split the text in 'trigger' text blocks on the empty line
$triggers = ((Get-Content "D:\Powershell\TriggerInfo.txt" -Raw) -split '\*+')[0] -split '(\r?\n){2,}'
# loop through these blocks (skip any possible empty textblock)
$triggers | Where-Object {$_ -match '\S'} | ForEach-Object {
    # and parse the data into Hashtables
    $data  = $_ -replace ':','=' | ConvertFrom-StringData
    # if you have values containing a colon (:) character,this is safer:
    # $data  = ($_ -split ':',2) -join '=' | ConvertFrom-StringData

    $splat = @{ 
        ResourceGroupName       = $data.ResourceGroupName
        DataFactoryName         = $data.DataFactoryName
        TriggerName             = $data.TriggerName
        TriggerRunStartedAfter  = "2020-10-15"
        TriggerRunStartedBefore = "2020-10-17"
   } 
   Get-AzDataFactoryV2TriggerRun @splat 
} | Export-Csv -Path 'D:\Powershell\new\Output.csv' -Encoding UTF8 -NoTypeInformation

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