Cannot index into a null arrayIf your variable is $null and you try to index it like an array, you get a System.Management.Automation.RuntimeException exception with the message Cannot index into a null array.PowerShell Copy PS> $empty = $null PS> $empty[0] Error: Cannot index into...
可以在远程命令中使用局部变量,但必须在本地会话中定义该变量。 从PowerShell 3.0 开始,可以使用Using范围修饰符在远程命令中标识局部变量。 的Using语法如下所示: 复制 $Using:<VariableName> 在以下示例中$ps,变量在本地会话中创建,但在运行命令的会话中使用。 范围Using修饰符标识$ps为局部变量。 PowerShell复制...
To create and initialize an array, assign multiple values to a variable. The values stored in the array are delimited with a comma and separated from the variable name by the assignment operator (=).For example, to create an array named $A that contains the seven numeric (integer) values ...
If you want to allow more than one value for the ComputerName parameter, use the String datatype but add square brackets ([]) to the datatype to allow an array of strings. PowerShell Copy function Test-MrParameterValidation { [CmdletBinding()] param ( [Parameter(Mandatory)] [string[]]...
A PowerShell array is a component that enables the storage of more than one item in a variable or a field. For instance, to assign multiple values to a variable, use the script$a=1,2,3. PowerShell treats each item in an array as a separate element. To address each item in an arra...
Example 1: Create a variablePowerShell Copy New-Variable days This command creates a new variable named days. You are not required to type the Name parameter.Example 2: Create a variable and assign it a valuePowerShell Copy New-Variable -Name "zipcode" -Value 98033 This command creates ...
Nothing too fancy here: we simply call the Get-Date cmdlet, enclosing the cmdlet in parentheses to ensure that PowerShell goes out and gets the date before it does anything else. We then grab the value of the Day property, and only the Day property, and assign it to the variable $a....
A cast can also be performed when a variable is assigned to usingcast notation. Comma operator, As a binary operator, the comma creates an array or appends to the array being created. In expression mode, as a unary operator, the comma creates an array with just one member. Place the com...
You can see what’s going on here: we’re taking our array ($arrColors) and “piping” it to the Sort-Object cmdlet. After Sort-Object sorts the items in the array, we then assign this new, sorted list back to $arrColors. So now what is $arrColors equal to? This:...
AsSecureString. The second is to assign the properties of the user account whose password you want to change to a variable using $UserAccount = Get-LocalUser -Name AccountName. Once you’ve done that, you can use the $UserAccount | Set-LocalUser -Password $Password command to assi...