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} ...
if语句最常见的用法是比较两个项。 PowerShell 具有特殊运算符,可用于不同的比较方案。 当使用比较运算符时,会将左右两侧的值进行比较。 -eq(等于) -eq在两个值之间执行相等检查,以确保它们彼此相等。 PowerShell $value=Get-MysteryValueif(5-eq$value) {# do something} ...
可以使用 Windows PowerShell 中的 If 构造来做出决策。 还可以使用它来评估查询的数据或用户输入。 例如,如果可用磁盘空间不足,则可以使用 If 语句显示警告。 If 构造使用以下语法: PowerShell If($freeSpace-le5GB) {Write-Host"Free disk space is less than 5 GB"}ElseIf($freeSpac...
'set-acl.exe' not recognized as the name of a cmdlet, 'Set-ExecutionPolicy' is not recognized as an internal or external command 'Unshare' 100+ dead print queues "Get-AzureVM" Powershell Command not recognized in application after deploying to IIS. "Get-EventLog : Requested registry access ...
自定义运行时，可让 AWS Lambda 运行使用 PowerShell 编写的 Lambda 函数。有了这个运行时，开发人员无需编译就可以用 Lambda 编写原生 PowerShell 代码，从而简化了部署和测试。 AWS 的无服务器开发者布道师 Julian Wood 介绍了它的优势： 新的 PowerShell 自定义运行时使用了原生 PowerShell，不需要编译 ...
param ($ComputerName = $(throw "ComputerName parameter is required.")) function CanPing { $Error.Clear() $tmp = Test-Connection $ComputerName -ErrorAction SilentlyContinue if (!$?) {Write-Host "Ping failed: $ComputerName."; return $false} else {Write-Host "Ping succeeded: $ComputerName...
{# Handle timeout errorsif($_.Exception.Number-eq-2){Write-Host"A timeout error has occurred. Increasing CommandTimeout..."}else{Write-Host"SQL Error occurred:$($_.Exception.Message)"}# Retry the operation if the maximum number of retries is not reachedif($r...
param($ComputerName= $(throw"ComputerName parameter is required."))functionCanPing {$Error.Clear()$tmp=Test-Connection$ComputerName-ErrorActionSilentlyContinueif(!$?) {Write-Host"Ping failed:$ComputerName.";return$false}else{Write-Host"Ping succeeded:$ComputerName";return$true} }functionCanRemote...
Microsoft.PowerShell_profile.ps1: Cannot dot-source this command because it was defined in a different language mode. To invoke this command without importing its contents, omit the '.' operator. I... Thanks All for your help! I had an internal discussion wi...
accessible from PowerShell by executinggit --versionfrom PowerShell. Ifgitis not recognized as the name of a command, verify that you have Git installed. If not, install Git fromhttps://git-scm.com. If you have Git installed, make sure the path to git is in your PATH environment ...