![错误:语法无效。默认选项不允许超过‘2’次](https://linux22.com/image/718397/%E9%94%99%E8%AF%AF%EF%BC%9A%E8%AF%AD%E6%B3%95%E6%97%A0%E6%95%88%E3%80%82%E9%BB%98%E8%AE%A4%E9%80%89%E9%A1%B9%E4%B8%8D%E5%85%81%E8%AE%B8%E8%B6%85%E8%BF%87%E2%80%982%E2%80%99%E6%AC%A1.png)
我正在尝试运行下面的 powershell 脚本来识别连接到计算机的 USB 或 SCSI 接口类型,如果我不使用IF
and-Or
运算符,该脚本就可以正常工作
if(($diskdrive = (gwmi win32_diskdrive | ?{$_.interfacetype -eq 'USB'})) -Or ($diskdrive =(gwmi win32_diskdrive | ?{$_.interfacetype -eq 'SCSI'}))){
$letters = $diskdrive | %{gwmi -Query "ASSOCIATORS OF
{Win32_DiskDrive.DeviceID=`"$($_.DeviceID.replace('\','\\'))`"} WHERE
AssocClass = Win32_DiskDriveToDiskPartition"} | %{gwmi -Query "ASSOCIATORS
OF {Win32_DiskPartition.DeviceID=`"$($_.DeviceID)`"} WHERE AssocClass =
Win32_LogicalDiskToPartition"} | %{$_.Deviceid}
setx OSDUSBDrive $letters /M
Write-Output $diskdrive, $letters}
Start-Sleep -s 5
if (-not ("Win32.NativeMethods" -as [Type]))
{
# import sendmessagetimeout from win32
Add-Type -Namespace Win32 -Name NativeMethods -MemberDefinition @"
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern IntPtr SendMessageTimeout(
IntPtr hWnd, uint Msg, UIntPtr wParam, string lParam,
uint fuFlags, uint uTimeout, out UIntPtr lpdwResult);
"@
}
$HWND_BROADCAST = [IntPtr] 0xffff;
$WM_SETTINGCHANGE = 0x1a;
$result = [UIntPtr]::Zero
# notify all windows of environment block change
[Win32.Nativemethods]::SendMessageTimeout($HWND_BROADCAST, $WM_SETTINGCHANGE, [UIntPtr]::Zero, "Environment", 2, 5000, [ref] $result);
Start-Sleep -s 5
错误:语法无效。默认选项不允许使用超过“2”次。C:\temp\AddOSDUSBDrive_NEW.ps1:10 : 1 + setx OSDUSBDrive $letters /M + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (错误:语法...超过 2 次:String) [], RemoteException + FullyQualifiedErrorId : NativeCommandError 输入“SETX /?”以显示语法。
任何想法?
答案1
使用setx OSDUSBDrive "$letters" /M
应用SETX.exe
句法图案
SETX [/s Computer [Credentials]] Variable Value [/m] ↑↑↑↑↑
$letters
如果包含更多内容,则可能是错误的字母例如F:
,,G:
H:
setx OSDUSBDrive $letters /M
# ↑↑↑↑↑↑↑↑ this evaluates to
setx OSDUSBDrive F: G: H: /M
# ↑↑ ↑↑ ↑↑ three space-separated values (WRONG)
已调整(见语法:转义符、分隔符和引号):
setx OSDUSBDrive "$letters" /M
# ↑↑↑↑↑↑↑↑↑↑ this evaluates to
setx OSDUSBDrive "F: G: H:" /M
# ↑↑↑↑↑↑↑↑ one string value (quotes = escape characters)
而且,我将对第一个进行IF
如下调整:
if ( $diskdrive = ( Get-WmiObject win32_diskdrive |
Where-Object { $_.interfacetype -in ('USB','SCSI') } ) ) {
解释:-or
运算符表示逻辑或:TRUE
当即,如果第一个操作数的计算结果为TRUE
,则其他操作数永远不会被计算。
例如,运行
Remove-Variable a, b -ErrorAction SilentlyContinue
if ( ($a = 1) -or ($b = 3) ) { Write-host "a=$a b=$b" }
无法检索变量“$b”,因为尚未设置。
if ( ($a = $null) -or ($b = 3) ) { Write-host "a=$a b=$b" }
a=b=3
答案2
我实际上按照你的建议添加了这个:
如果($diskdrive =(Get-WmiObject win32_diskdrive | Where-Object {$_.interfacetype -in('USB','SCSI')})){
当我手动运行该脚本时,它运行正常,但是当从 SCCM 调用它时,我收到以下错误
您必须在“-”运算符的右侧提供一个值表达式。TaskSequencePSHost 3/6/2018 4:36:37 PM 0 (0x0000) 在 D:\SMS\PKG\SE1001B5\AddOSDUSBDrive_NEW.ps1:2 char:42 + Where-Object { $_.interfacetype - <<<< in ('USB','SCSI') } ) ){ TaskSequencePSHost 3/6/2018 4:36:37 PM 0 (0x0000) ParserError: (:) [], ParseException TaskSequencePSHost 3/6/2018 4:36:37 PM 0 (0x0000) TSHOST: 脚本已完成,返回代码为 0 TaskSequencePSHost 3/6/2018 4:36:37 PM 0 (0x0000)