The Select-Object cmdlet selects specified properties of an object or set of objects. It can also select unique objects, a specified number of objects, or objects in a specified position in an array. To select objects from a collection, use the First, La
有幾個命令列小程式支援使用哈希表來建立自定義或計算屬性。 您通常會使用Select-Object和Format-Table來看到此專案。 哈希表具有特殊語法,在完全展開時看起來像這樣。 PowerShell $property= @{ Name ='TotalSpaceGB'Expression = { ($_.Used +$_.Free) /1GB } } ...
() }$groupResult=$groupResult|Sort-ObjectTotalMilliseconds$groupResult|Select-Object*, @{ Name ='RelativeSpeed'Expression = {$relativeSpeed=$_.TotalMilliseconds /$groupResult[0].TotalMilliseconds$speed= [Math]::Round($relativeSpeed,2).ToString() +'x'if($speed-eq'1x') {$speed}else{$speed+...
Selects objects from indexed collections, such as arrays and hash tables. Array indexes are zero-based, so the first object is indexed as[0]. You can also use negative indexes to get the last values. Hash tables are indexed by key value. ...
$a = New-Object System.Collections.ArrayList That command gives us an empty array named $a. If we then want to populate that array with some information (which we probably do), all we have to do is call theAddmethod followed by the item we want to add to the array. For example, her...
when the pipeline is truncated, for example:Select-Object -First when the pipeline is stopped byCtrl+CorStopProcessing() Caution Adding thecleanblock is a breaking change. Becausecleanis parsed as a keyword, it prevents users from directly calling a command namedcleanas the first statement in a...
$SqlCmd.commandtext = 'delete top(1) from dbo.B' $SqlCmd.ExecuteScalar() #方法三,查询显示 $SqlCmd.commandtext = 'select name,recovery_model_desc,log_reuse_wait_desc from sys.databases' $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter ...
Append static csv column to result set on export of data; Using Select-Object and Export-CSV append string to all strings in array Appending info to the telephone (notes) tab in AD Appending line to info attribute with Powershell Appending Parent Folder, Current Folder onto file name Appending...
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$a | sort-object | Get-Unique –AsString $a | sort-object –Unique $a | Select-Object -Unique The code to create the array of strings and select unique strings from the array, and the associated output are shown in the image that follows. Well, that is about all there is to select...