Question

我写了这个小脚本，当我测试Write-Host $serial时，它显得很好，但当它在后台运行时$serial似乎包含一个数组。

它尝试将计算机重命名为C000@{SerialNumber=F7ZL3F2}，而不仅仅是C000F7ZL3F2。

我该怎么办才能得到字符串而不是这个数组？

Import-Module ActiveDirectory
Get-ADComputer -Filter {Name -like 'DESKTOP-*'} -Properties * | Select Name, DNSHostName | ForEach-Object {
    $rtn = Test-Connection -CN $_.dnshostname -Count 1 -BufferSize 16 -Quiet
    if ($rtn -match 'True') { 
        $serial = Get-WMIObject Win32_Bios -ComputerName $_.name | Select-String SerialNumber
        $serial = "C000$serial"
        // Write-Host $serial
        Rename-Computer -ComputerName $_.name -NewName $serial -DomainCredential $mycreds -Force -Restart
    }
}

Answer 1

您的代码中有两个错误需要指出 -

$serial = Get-WMIObject Win32_Bios -ComputerName $_.name | Select-String SerialNumber

Select-String cmdlet在输入字符串和文件中搜索文本和文本模式。 Get-WMIObject Win32_Bios的基本类型输出为System.Management.ManagementBaseObject
的位置
```
(Get-WMIObject Win32_Bios).Gettype()
IsPublic IsSerial Name             BaseType
-------- -------- ----             --------
True     True     ManagementObject System.Management.ManagementBaseObject
```
在这种情况下，您可以使用Select-Object代替Select-String，而不是Serial Number。因为，$serial = "C000$serial"是输入命令返回的属性之一。
$serial

$serial.SerialNumber的输出将是这样的：
```
SerialNumber


5CXXXXYYYXZZZ
```
同样，您可以Import-Module ActiveDirectory Get-ADComputer -Filter {Name -like 'DESKTOP-*'} -Properties * | Select Name, DNSHostName | ForEach-Object { $rtn = Test-Connection -CN $_.dnshostname -Count 1 -BufferSize 16 -Quiet if ($rtn -match 'True') { $serial = Get-WMIObject Win32_Bios -ComputerName $_.name | Select-Object SerialNumber $serial = "C000$($serial.SerialNumber)" Rename-Computer -ComputerName $_.name -NewName $serial -DomainCredential $mycreds -Force -Restart } }直接调用它。所以你的整体代码将是
```
-ExpandProperty
```
或者您可以使用Select-Object cmdlet的$serial = Get-WMIObject Win32_Bios -ComputerName $_.name | Select-Object -ExpandProperty SerialNumber $serial = "C000$serial"参数，如
```
del output.txt
for /R %F in (*.txt) do type "%F" >> output.txt
```

Answer 2

您为什么使用Select-String？我会使用Select-Object然后使用-ExpandProperty

Import-Module ActiveDirectory

Get-ADComputer -Filter {Name -like 'DESKTOP-*'} -Properties * | Select Name, DNSHostName | ForEach-Object {

  $rtn = Test-Connection -CN $_.dnshostname -Count 1 -BufferSize 16 -Quiet

  if ($rtn -match 'True') { 
  $serial = Get-WMIObject Win32_Bios -ComputerName $_.name | Select-Object -ExpandProperty SerialNumber

  $serial = "C000$serial"

  // Write-Host $serial

  Rename-Computer -ComputerName $_.name -NewName $serial -DomainCredential $mycreds -Force -Restart
    }

}

Answer 3

尝试更改此行：

$serial = Get-WMIObject Win32_Bios -ComputerName $_.name |
            Select-String SerialNumber

到此：

$serial = (Get-WMIObject Win32_Bios -ComputerName $_.name).SerialNumber

或者这个：

$serial = Get-WMIObject Win32_Bios -ComputerName $_.name |
           Select-Object -ExpandProperty SerialNumber

变量是数组而不是字符串？

3 个答案: