Question

我希望监控服务并在启动模式为自动时启动它们。

$WMI = Get-WmiObject Win32_Service | 
Where-Object { $_.StartMode -eq 'Auto' -and $_.State -ne 'Running' -and $_.DisplayName -notlike 'Microsoft .NET Framework NGEN v4.0.30319_X86' -and $_.DisplayName -notlike 'Windows Image Acquisition (WIA)' -and $_.DisplayName -notlike 'Microsoft .NET Framework NGEN v4.0.30319_X64' -and $_.DisplayName -notlike 'Software Protection' -and $_.DisplayName -notlike 'Google Update Service (gupdate)' -and $_.DisplayName -notlike 'Google Update-service (gupdate)' -and $_.DisplayName -notlike 'Pml Driver HPZ12' -and $_.DisplayName -notlike 'Shell Hardware Detection' -and $_.DisplayName -notlike 'Group Policy Client' -and $_.DisplayName -notlike 'Multimedia Class Scheduler' -and $_.DisplayName -notlike 'Skype Updater' -and $_.DisplayName -notlike 'Remote Registry' -and $_.DisplayName -notlike 'TPM Base Services' -and $_.DisplayName -notlike 'Windows Update' -and $_.DisplayName -notlike 'Windows Modules Installer' -and $_.DisplayName -notlike 'Smart Card'} | Select DisplayName,State

在我的情况下，这在执行时给出了两个结果：

$displayname = $WMI | select Displayname

结果：

DisplayName                                                                                                                            
-----------                                                                                                                            
SQL Server Agent (JOURNYX)                                                                                                             
Performance Logs and Alerts

我无法使用foreach

让它发挥作用

这是因为最后当我使用Start-Service $displayname时，它会尝试启动@{DisplayName=SQL Server Agent (JOURNYX)}

这是我的脚本：

$WMI = Get-WmiObject Win32_Service | 
Where-Object { $_.StartMode -eq 'Auto' -and $_.State -ne 'Running' -and $_.DisplayName -notlike 'Microsoft .NET Framework NGEN v4.0.30319_X86' -and $_.DisplayName -notlike 'Windows Image Acquisition (WIA)' -and $_.DisplayName -notlike 'Microsoft .NET Framework NGEN v4.0.30319_X64' -and $_.DisplayName -notlike 'Software Protection' -and $_.DisplayName -notlike 'Google Update Service (gupdate)' -and $_.DisplayName -notlike 'Google Update-service (gupdate)' -and $_.DisplayName -notlike 'Pml Driver HPZ12' -and $_.DisplayName -notlike 'Shell Hardware Detection' -and $_.DisplayName -notlike 'Group Policy Client' -and $_.DisplayName -notlike 'Multimedia Class Scheduler' -and $_.DisplayName -notlike 'Skype Updater' -and $_.DisplayName -notlike 'Remote Registry' -and $_.DisplayName -notlike 'TPM Base Services' -and $_.DisplayName -notlike 'Windows Update' -and $_.DisplayName -notlike 'Windows Modules Installer' -and $_.DisplayName -notlike 'Smart Card'} | Select DisplayName,State 


$displayname = $WMI | select Displayname

foreach ($servicename in $displayname) {

try {

start-service $Servicename.DisplayName -ErrorAction stop

Write-host "Service" $servicename.displayname "started, after being failed"

exit 1001

}

catch {

Write-Host "Tried to start" $servicename.displayname "Service, but failed"

exit 1001

}

}

write-host  "Services reporting OK" 
Exit 0

Answer 1

你有一个对象$ WMI，其中包含值state和displayname。

执行$displayname = $WMI | select Displayname时，您仍然有一个对象，现在名为$displayname，并且其中包含一个名为displayname的值。所以你需要引用这个值：

Start-Service $displayname.displayname。

在某些情况下，最好使用Start-Service $($displayname.displayname)，因此PS可以在将其用作参数之前对其进行评估。

Answer 2

你需要通过＆＃39; name＆＃39;属于Start-Service。

gwmi win32_service | ? {$_.StartMode -eq 'Auto' -and $_.State -ne 'Running'} | Select -ExpandProperty Name | Start-Service

请在Where-Object（？）中添加过滤器。

Powershell中变量中的字符串行

2 个答案: