powershell - 从Job捕获详细流

Question

我试图成为一名优秀的powerscript用户，并按照最佳实践使用Write-Verbose，但是我无法从正在运行的Job中获取Verbose流。

$Job = Start-Job -Name "Scanning Work Item" -ScriptBlock{
    Write-Verbose "Write-Verbose" 
    Write-Host "Write-Host"
} 

while ($Job.HasMoreData -or $Job.State -eq "Running") {     
    Receive-Job -Job $Job -Verbose 
    Start-Sleep -Seconds 1
}

输出是

Write-Host

请仅用经过测试的代码回答，因为我已经花了数小时尝试各种Powershell脚本排列。

Answer 1

首先，您没有得到任何冗长的输出，因为您尚未更改 session 的默认VerbosePreference。

至于在作业运行时读取详细输出，您可以分别从关联的子作业中读取每个输出流缓冲区，而无需执行Receive-job，并且在执行Receive-Job时也不会影响以后的输出，

$Job = Start-Job -Name "Scanning Work Item" -ScriptBlock{
    $VerbosePreference = 'Continue'
    Write-Verbose "Write-Verbose" 
    Write-Host "Write-Host"
    Start-Sleep -Seconds 10
} 

Start-sleep -Seconds 2

$Verbose = $Job.ChildJobs[0].verbose.readall()

$verbose

while ($Job.HasMoreData -or $Job.State -eq "Running") {     
    Receive-Job -Job $Job 
    Start-Sleep -Seconds 1
}


Write-Verbose
VERBOSE: Write-Verbose
Write-Host