$myString = "Hello, Powershell" if ($myString -match "Powershell") { Write-Host "The string contains 'Powershell'" } else { Write-Host "The string does not contain 'Powershell'" } 在上述示例中,我们定义了一个字符串变量$myString,并使用IF语句判断该字符串是否包含"Powershell"...
PowerShell if($a-gt2) {Write-Host"The value$ais greater than 2."} 在此示例中,如果$a变量大于2,则条件的计算结果为 true,并且语句列表将运行。 但是,如果$a小于或等于2或不是现有变量,则if语句不会显示消息。 通过添加 Else 语句,当$a小于或等于 2 时显示一条消息。 如下一个示例所示: ...
Let me give you two examples showing how to use Else statements in PowerShell. Example 3: Checking if a variable is greater than a number In this example, we make several checks: The If statement checks whether the variable $number is greater than 10. If it is, the message “The number...
In PowerShell, checking if a variable is null (or in PowerShell terms, $null) is a fundamental task in scripting, especially when dealing with the output of
Like many other languages, PowerShell has statements for conditionally executing code in your scripts.
Windows PowerShell Index -contains operator vs .contains() method -ea operator -ErrorAction:SilentlyContinue parameter is not being respected & $error variable not updated -ExpandProperty & Export CSV !!! powershell script to add a word in the beginning of the text file - URGENT !!! 'A posi...
$myArray=42,"PowerShell",$true,19.99 $item="42" $result=$myArray.Contains($item) Here, $result will be $false because "42" (string) is not the same type as 42 (integer). If we change42to integer, it will return$true. Mixed data types ...
A single-line If statement contains several statements separated by colons (:), one of which is an End statement for a control block outside the single-line If. Single-line If statements do not use the End If statement.Error ID: BC32005...
You can also use theIsNullOrWhiteSpacemethod to check if a string variable is not null or empty in PowerShell. This method only works from PowerShell 3.0. It returnsTrueif the variable is null or empty or contains white space characters. If not, it printsFalsein the output. ...
In the Windows PowerShell window, run the following command to check whether the current self-signed certificate has expired: Get-Item 'Cert:\LocalMachine\Remote Desktop\*' | Select-Object NotAfter If the self-signed certificate has expired, run the following commands to del...