在某些语言中,可以在if语句后放置一行代码,它将会得以执行。 在 PowerShell 中情况并非如此。 必须提供带大括号的完整scriptblock才能使其正常工作。 比较运算符 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。
您也可以使用if語句 scriptblock 將值指派給變數。 PowerShell $discount=if($age-ge55) {Get-SeniorDiscount}elseif($age-le13) {Get-ChildDiscount}else{0.00} 每個腳本區塊都會將命令的結果或值寫入為輸出。 我們可以將if語句的結果指派給$discount變數。 該範例可以同樣輕鬆地直接在每個腳本區塊中將這些值分配...
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...
BREAK comand exiting entire script, not just the IF/ELSE loop Broken PSSession cmdlet Bug? Invoke-RestMethod and UTF-8 data Building a string from a Get-ADComputer output adds @{Name= to the computer name Bulk adding Active Directory users to a group by Display Name with PowerShell Bulk ch...
$DataValid=$false}if($DataValid){$CurrentContext=Get-Principal-userName $AdUser-userPassword $AdUserPwd-ctxDomain $AdDomain-ctxContainer $AdContainer}else{Write-Host 传入参数不能为空,请修改。或者使用已登录的用户的凭据,请设置UserLoggedInUsersCredentials为True。详情请 Get-Help.\CreateUsersFromCsv1....
Length;$i++){ "`$iparray["+$i+"]="+$iparray[$i]+"`n" Invoke-Command -ComputerName $iparray[$i] -Credential $Cred -ScriptBlock { Get-WindowsFeature -Name NET-*, Web-* | where {$_.Name -notmatch "Ftp|Web-Application-Proxy"} | Install-WindowsFeature; } }...
Well, it’s not unusual for script writers to need an array consisting of all the days in a week. If you want to, you can handcraft that array using code similar to this: Copy $a = "Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday" Or, you could let the...
Profile / Start Script The key to ultimate customization is to have a way to define code that runs on each console start without requiring manual action. Now if only there were a way to do that in PowerShell … Copy $profile Yeah, that simple. As long as that file exists, it will be...
Even when events are handled on the right thread, PowerShell’s scoping concepts mean that the event handler scriptblock must be written carefully to not depend on variables defined outside it. There are situations where redirecting to a common version will not work: ...
$url = "https://contoso.com" $myscript = "get-spsite $url" $sb = [scriptblock]::Create($myscript) Invoke-Command $sess -ScriptBlock $sb 您可以通过您的桌面在同一服务器或不同服务器上,使用 Windows PowerShell Invoke-Command cmdlet 与多个会话通信。利用该 cmdlet,您可以同时启动随后并行运行...