Functions can return values that can be displayed, assigned to variables, or passed to other functions or cmdlets. You can use thereturnkeyword to return output. Thereturnkeyword doesn't affect or suppress other output returned from your function. However, thereturnkeyword exits the function at ...
function Test-MrParameterValidation { [CmdletBinding()] param ( [Parameter(Mandatory)] [string[]]$ComputerName ) Write-Output $ComputerName } Maybe you want to specify a default value for the ComputerName parameter if one isn't specified. The problem is that default values can't be used ...
.IValidateSetValuesGenerator { [string[]] GetValidValues() { $SoundPaths = '/System/Library/Sounds/', '/Library/Sounds','~/Library/Sounds' $SoundNames = ForEach ($SoundPath in $SoundPaths) { If (Test-Path $SoundPath) { (Get-ChildItem $SoundPa...
The following is an example of usingGet-OutputBindingto return current binding values: PowerShell Get-OutputBinding Output Name Value --- --- MyQueue myData MyOtherQueue myData Get-OutputBindingalso contains a parameter called-Name, which can be used to filter the returned binding, as in the...
Return Values in the Pipeline in PowerShell When you return a value from your script block or function, Windows PowerShell automatically pops the members and pushes them one at a time through the pipeline. The reason behind this use case is due to Windows PowerShell’s one-at-a-time proces...
catch return value from script in batch file Catching errors and outputting to log file change a cell value in excel using powershell Change Baud Rate or Bits Per Second COM Port X with Powershell Change Cell Color in HTML Table when match a value Change computer name using partial serial ...
When an object isn't an indexed collection, using the index operator to access the first element returns the object itself. Index values beyond the first element return$null. PowerShell PS> (2)[0]2PS> (2)[-1]2PS> (2)[1]-eq$nullTrue PS> (2)[0,0]-eq$nullTrue ...
You don’t need to worry about upper/lower case, Windows PowerShell doesn’t care. Windows PowerShell should return the current path. Windows PowerShell knows a lot about your computer, so let’s try a few more cmdlets. PS C:> Get-Service ...
throw “$_ is not an event on [IO.FileSystemWatcher]. Possible values are: $possibleEvents” } return $true })] [string[]] $For = (“Deleted”, “Changed”, “Renamed”) ‘ Making one combined parameter block is now just one little string with a couple of variables: ...
On line two, the parenthetical expression is reading the contents of a text file. Assuming the file contains one computer name per line, “Get-Content”” will return an array of computer names. Those are fed to the “–computerName” parameter of “Get-Service.” In this case, the shel...