PowerShell 複製 $MyVariable = 1, 2, 3 $Path = "C:\Windows\System32" 變數可用於儲存命令的結果。例如:PowerShell 複製 $Processes = Get-Process $Today = (Get-Date).DateTime 若要顯示變數的值,請輸入變數名稱,前面加上貨幣符號 ($)。例如:PowerShell 複製 ...
while (items != null && items.Count == 1) { // Increment the line number each time a line is // processed. lineNumber++; String message = String.Format("Testing line {0} : {1}", lineNumber, items[0]); WriteDebug(message); result = SelectString(items[0]); if (result !...
$MaximumHistoryCount判斷目前會話的命令歷程記錄中儲存了多少個命令。有效值:1 - 32768 (Int32)默認值:4096若要判斷目前儲存在命令歷程記錄中的命令數目,請輸入:PowerShell 複製 (Get-History).Count 若要查看會話歷程記錄中儲存的命令,請使用 Get-History Cmdlet。 如需詳細資訊,請參閱 about_History。
2 | Foreach-Object -Parallel { | ~~~ | The value of the using variable '$using:test2' can't be retrieved because it has | not been set in the local session.巢狀腳本區塊無法存取 $test2 變數,並擲回錯誤。範例18:建立多個平行執行腳本的作業Throttle...
This is the full path to the file that Windows PowerShell will try to run when it starts. Notice we said “try” to run. Here’s an interesting fact: just because you were able to find the profile doesn’t mean it actually exists. $profile is simply a built-in variable that contains...
However, in PowerShell, there are additional behaviors. Grouping result expressions (...)allows you to let output from acommandparticipate in an expression. For example: PowerShell PS> (Get-Item*.txt).Count-gt10True Piping grouped expressions ...
[-ExtraPromptLineCount <int>] [-DingTone <int>] [-DingDuration <int>] [-BellStyle <BellStyle>] [-CompletionQueryItems <int>] [-WordDelimiters <string>] [-HistorySearchCaseSensitive] [-HistorySaveStyle <HistorySaveStyle>] [-HistorySavePath <string>] [-AnsiEscapeTimeout <int>] [-Prompt...
# Function to execute the SQL command with retry logicfunctionExecuteWithRetry{param([int]$retryCount= 0,[System.Data.SqlClient.SqlConnection]$connection,[string]$query)try{# Open the database connection# Create a SqlCommand object$command=New-ObjectSystem.Data.SqlClien...
In the next snippet I have executed a cmdlet that doesn’t exist, throwing an error. If we grab the count on $error, you will notice it has increased to one item. Dumping that object to the pipeline by accessing $error[0] just prints the error we already saw, right back at us. PS...
Incidentally, you can determine the number of items in an array simply by echoing back the value of theCountproperty, like so: $a.Count Oh, one more thing: what if you to get rid ofallthe items in the array? Here’s one thought; call theClearmethod: ...