param( [ValidateDrive("C", "D", "Variable", "Function")] [string]$Path ) ValidateUserDrive 验证属性 ValidateUserDrive 属性指定参数值必须在驱动器中User表示。 如果路径引用其他驱动器,PowerShell 将生成错误。 验证属性仅测试路径的驱动器前缀是否存在。 如果使用相对路径,则当前驱动器必须...
InformationAction 的有效值為 SilentlyContinue、Stop、Continue、Inquire、Ignore 或 Suspend,預設值為 SilentlyContinue。 針對來自命令的 Write-Host 資料,您可使用 InformationVariable 將字串指定為要儲存的變數名稱。 InformationPreference (新的喜好設定變數) 能指定您在 Windows PowerShell 工作階段中...
了在非 Windows 平臺上從非 PowerShell 殼層執行的 PowerShell 腳本中使用 (也稱為 shebang)。 這也表示您可以執行類似pwsh foo.ps1或pwsh fooScript的命令,而不指定-File。 不過,這項變更會要求您明確指定-c或-Command嘗試執行 之類的pwsh.exe -Command Get-Command命令時。 pwsh-i接受 (或-Interactive) 參數...
To run the function, typeSearch-Help. The function'sSelect-Stringcommand displays the output in the PowerShell console. Example 5: Search for a string in a Windows event log This example searches for a string in a Windows event log. The variable$_represents the current object in the pipelin...
PSD:\>$process=Start-Process-FilePath"./a.exe"-NoNewWindow-PassThru-Wait a - b =255 PSD:\>$exitCode=$process.ExitCode PSD:\>Write-Output"程序退出代码:$exitCode""" 3. 获取程序执行耗时 在Linux 下可以用time ./testbed。 PowerShell 不支持time命令, 提供了如下三种方式来获取耗时: 获取程序...
$Env:<variable-name> = "<new-value>" 例如,若要建立 Foo 環境變數: powershell 複製 $Env:Foo = 'An example' 因為環境變數一律是字串,因此您可以使用它們,就像包含字元串的任何其他變數一樣。 例如: powershell 複製 "The 'Foo' environment variable is set to: ...
That lets Windows PowerShell map the variable to one of the extremely powerful .NET Framework types, giving you a lot of additional built-in functionality. For example, suppose you want to prompt for a computer name and retrieve the service pack version from that computer, but you don't ...
Additionally, instead of using an explicit $loaded variable, I could have used the Windows PowerShell break statement to exit the delay loop. Windows PowerShell has a rich set of control structures that allow you to program in many different styles, including whatever programming style you are ...
The output information is stored in the $users variable. Just type $users at your PowerShell command prompt to view the results, as shown in Table 4, that are returned from the Get-LdapFilteredUsers function. Copy $users Table 4. Results from the LdapFilteredUsers function Expand table ...
Script由普通的Function以及其他的逻辑语句(顺序、选择、循环)组成。 对pipeline input进行处理的script语句。其结构为 param(…) begin { … } process { … } end { … } PowerShell executes the begin statement when it loads your script, the process statement ...