PS> $empty = $null PS> $empty[0] Error: Cannot index into a null array. 因此,在尝试访问数组中的元素之前,请确保数组不是 $null。Count数组和其他集合具有计数属性,可告知数组中有多少项。PowerShell 复制 PS> $data.count 4 PowerShell 3.0 向大多数对象添加了计数属性。 你可以使用单个对象,它应该...
Filtering an Array of Objects filtering event logs with specific date range Filtering files by date (Get-Childitem | Select-Object | Where-Object) - what am I doing wrong? Filtering on NoteProperty Find a empty and not empty value in 2 lines in 2 columns at the same time Find AD users...
Of course, we still have one minor problem: the items in our array aren’t in alphabetical order. Sorting an array in VBScript is an … interesting … experience, to say the least. Here’s how you can sort an array in Windows PowerShell:...
A prominent example of comparing arbitrary objects is to find out if they're null. But if you need to determine whether a variable is $null, you must put $null on the left-hand side of the equality operator. Putting it on the right-hand side doesn't do what you expect. For example...
As a result, the $ia array can contain only integers.You can create arrays that are cast to any supported type in the .NET. For example, the objects that Get-Process retrieves to represent processes are of the System.Diagnostics.Process type. To create a strongly typed array of process ...
The Extensions parameter specifies the extension number for the user. Either a single extension number or an array of telephone number extensions can be specified. The user's extension must be unique to the UM dial plan. If you don't use this parameter, the command attempts to use a default...
PowerShell uses the parameter value order to associate each parameter value with a parameter in the function. When you use positional parameters, type one or more values after the function name. Positional parameter values are assigned to the $args array variable. The value that follows the ...
Specifies parameters or parameter values to use when this cmdlet starts the process. Arguments can be accepted as a single string with the arguments separated by spaces, or as an array of strings separated by commas. The cmdlet joins the array into a single string with each element of the a...
Apply inheritance to "This object and all descendant objects" from powershell Applying Multiple conditions for each row in CSV file Approve Updates By Computer Groupt Are there commands to use instead of using certtmpl.msc? Argument was specified as a script block, and no input exists ar...
While they are replaced with the actual values in the message text, a more robust way to access them is to retrieve the message with the Get-WinEvent cmdlet, and then use the Properties array of the message. Here’s an example of how this functionality can help unwrap a malicious attempt...