if($value-is[string] ) {# do something} 如果您正在處理類別或接受管線上的各種物件,您可以使用這。 您可以將服務或服務名稱作為輸入。 然後檢查您是否有服務,如果您只有名稱,則取得該服務。 PowerShell if($Service-isnot[System.ServiceProcess.ServiceController] ) {$Service=Get-Service-Name$Service} ...
Protected Overrides Sub ProcessRecord() '/ If no process names are passed to the cmdlet, get all processes. If processNames Is Nothing Then Dim processes As Process() processes = Process.GetProcesses() End If '/ If process names are specified, write the processes to the '/ pi...
This tutorial will introduce different methods to check if a string is not null or empty in PowerShell.
$folder = "C:\Test\EmptyFolder" if ((Get-ChildItem $folder).Count -eq 0) { Remove-Item $folder } else { Write-Host "Directory is not empty" }这个脚本首先检查目录是否为空。如果目录为空,它会删除该目录,否则会输出提示信息。5. 删除符合条件的文件你可以通过 Get-ChildItem 与Where-Object ...
运算符解释 -and 和 -or 或 -xor 异或 -not 逆 拆分运算符 (用于字符串) 运算符解释 -Join 将多个字符串合并为1个 -Split 将1个或多个字符串拆成多个子字符串 其他运算符 运算符解释 > 重定向文件运算符 >> 追加文件内容运算符 >&1 重定向成功流,命令执行成功后流入 | 管道运算符 控制结构 If #...
If a parameter is not positional, you leave off the Position attribute and use the parameter name from the command line to provide a value.The documentation recommends that you make frequently used parameters positional whenever possible. The only problem with this guidance is that if you have ...
The AllowNotFoundExchangeLocationsEnabled parameter specifies whether to include mailboxes other than regular user mailboxes in the compliance search. Valid values are: $true: The search doesn't try to validate the existence of the mailbox before proceeding. This value is required if you want to...
If the values contain spaces or otherwise require quotation marks, use the following syntax: "Sender1","Sender2",..."SenderN". By default, this parameter is blank ($null), which allows this recipient to accept messages from all senders. Expand table Type: MultiValuedProperty Position: ...
IsNotNullAdvancedFilterTypeConverter.CanConvertTo(Object, Type) MethodReference Feedback DefinitionNamespace: Microsoft.Azure.PowerShell.Cmdlets.EventGrid.Models Assembly: Az.EventGrid.private.dll Determines if the sourceValue parameter can be converted to the destination...
# This function is meant to simplify a check against a DSC pull server. If you do not use the# default service URL, you will need to adjust accordingly.functionVerify-DSCPullServer($fqdn) { ([xml](Invoke-WebRequest"https://$($fqdn):8080/psdscpullserver.svc"| % Content)).service.wo...