function Test-MrParameter { param ( $ComputerName ) Write-Output $ComputerName } The following function queries all commands on your system and returns the number with specific parameter names. PowerShell Copy function Get-MrParameterCount { param ( [string[]]$ParameterName ) foreach ($Param...
This parameter specifies what action should take place when an error occurs. The possible values for this parameter are defined by the ActionPreference enumeration. ErrorVariable (alias: ev) Data type: String This parameter specifies the variable in which to place objects when an error occurs. To...
Parametersare defined by the names that appear in a function definition, whereasargumentsare the values actually passed to a function when calling it. Parameters define whatkind of argumentsa function can accept. For example, given the function definition: def func(foo, bar=None, **kwargs): pa...
function SCOPE:name(parameters) { statement block } Valid scope names are global (to create a function available to the entire shell), script (to create a function available only to the current script), local (to create a function available only to the current scope and subscopes), and pri...
To use this function, type the following command: PowerShell Get-SmallFiles-Size50 You can also enter a value for a named parameter without the parameter name. For example, the following command gives the same result as a command that names theSizeparameter: ...
If you create a function at the command line and then import a function with the same name, the original function is replaced. Finding hidden commands The ALL parameter of the Get-Command cmdlet gets all commands with the specified name, even if they're hidden or replaced. Beginning in ...
Powershell已经提供了许多用户能够使用的预定义函数,这些函数可以通过Function:PSDrive虚拟驱动器查看。 PSC:\PowerShell>Get-ChildItemfunction: |Format-TableName,Definition Name Definition---A:Set-Location$MyInvocation.MyCommand.Name B:Set-Location$MyInvocation.MyCommand.Name C:Set-Location$MyInvocation.MyCom...
functionGet-MrPSVersion{$PSVersionTable} 运行脚本时,不会发生任何事情。 PowerShell .\Get-MrPSVersion.ps1 如果尝试调用函数,则会生成错误消息。 PowerShell Get-MrPSVersion Output Get-MrPSVersion : The term 'Get-MrPSVersion' is not recognized as the name of a cmdlet, function, script file, or...
The InformationAction parameter overrides, but doesn't replace the value of the $InformationAction preference variable when the parameter is used in a command to run a script or function. -InformationVariable Introduced in PowerShell 5.0. When you use the InformationVariable common parameter,...
Windows PowerShell reads this and will even tab-complete parameter names when someone runs the script or function. I’ve been careful to use parameter names: they’re –computerName and –filePath here. These are similar to the ones other Windows PowerShell cmdlets use for this kind of infor...