Don't modify the global $ErrorActionPreference variable unless absolutely necessary. If you change it in a local scope, it reverts to the previous value when you exit that scope. If you're using something like .NET directly from within your PowerShell function, you can't specify the Error...
Invoke-Sqlcmd [-AccessToken <String>] [[-Query] <String>] [-QueryTimeout <Int32>] [-ErrorLevel <Int32>] [-SeverityLevel <Int32>] [-MaxCharLength <Int32>] [-MaxBinaryLength <Int32>] [-AbortOnError] [-DisableVariables] [-DisableCommands] [-Variable <PSObject>] [-InputFile <String...
此命令會使用字元字串數位做為 Variable 參數的輸入。 數位會定義多個 SQLCMD 變數。 在SELECT 語句中識別 SQLCMD 變數的 $ 符號會使用反向刻度 (') 字元逸出。 範例4:叫用腳本,並從 SQL 資料庫引擎傳入變數 PowerShell 複製 Set-Location "SQLSERVER:\SQL\MyComputer\MainInstance" PS SQLSERVER:\SQL\MyCom...
Windows PowerShell reserves a few parameter names, referred to as Common parameters, which you can't use: WhatIf, Confirm, Verbose, Debug, ErrorAction, ErrorVariable, OutVariable, and OutBuffer. In addition, the following aliases for these parameter names are reserved: vb, db, ea, ev, ov...
$token = 'abcd' # Assign expr-value to sensitive variable name. Set-Secret abc $mySecret # Set-Secret is not in the allowlist. ConvertTo-SecureString stringValue -AsPlainText # '-AsPlainText' is an alert. Invoke-WebRequest -Token xxx # Expr-value as argument to '-Token'. Get-Result...
when you use double quotes-as opposed to single quotes-Windows PowerShell scans the text string for any variables. If it finds any, it substitutes the variable's actual value for the variable's name. Thus, when it executes this code, you can see that the current service name is being di...
-InputObject:This denotes the objects that should be passed through the pipeline. It can be an expression, a variable of objects or an expression. The datatype of this parameter is PSObject[]. Its default value is none. It accepts pipeline input but doesn’t accept wildcard characters. ...
The value for the –Computer parameter has been provided in the $c variable. That variable was initially created as a string, so it picked up all the functionality of the .NET Framework String type, including the Replace method. Of course, learning about all of these capabilities will take ...
computername is a single string or an array of strings. It is mandatory, and it accepts string pipeline input—meaning if you pipe in a bunch of strings, they’ll be automatically dropped into the $computername variable. pingfirst is not mandatory, but if you do use it, you should use...
To store the result of our cmdlet, we first need a variable. Variables all start with a $. We could just call it “$a” but that’s not very descriptive, so we’ll call it: $MyPath. Go ahead and type that part in your PowerShell window. ...