about_Special_Characters 项目 2024/05/06 本文内容 简短说明 长说明 null ('0) 警报(“) 显示另外 13 个 简短说明 描述控制 PowerShell 如何解释序列中下一个字符的特殊字符序列。 长说明 PowerShell 支持一组特殊字符序列,这些序列用于表示不属于标准字符集的字符。 序列通常称为转义序列。
@{ ModuleVersion ='1.0'FunctionsToExport = @('Test-MyModule') CompatiblePSEditions = @('Desktop') } 省略模块清单中的CompatiblePSEditions字段将具有与将其设置为Desktop相同的效果,因为在引入此字段之前创建的模块是针对此版本隐式编写的。 对于未作为 Windows (的一部分提供的模块(即从库) 编写...
範圍using修飾詞是在 PowerShell 3.0 中引進的。 針對任何在會話外執行的腳本或命令,您需要using範圍修飾詞來內嵌來自呼叫會話範圍的變數值,讓會話程序代碼可以存取它們。 下列using內容支援範圍修飾詞: 遠端執行的命令,開頭Invoke-Command為使用ComputerName、HostName、SSHConnection或Session參數 (遠端會話) ...
Add-Content Get-Content Set-Content Microsoft.PowerShell.Utility Export-Clixml Export-Csv Export-PSSession Format-Hex Import-Csv Out-File Select-String Send-MailMessage 字节顺序标记 BOM) (字节顺序标记是文件或文本流的前几个字节中的Unicode 签名,用于指示用于数据的 Unicode 编码。 有关详细信息,请参阅...
$randomString += $randomCharacter } Write-Host $randomString OUTPUT 1 2 3 mQ7NgZmX!0 First, we used the ToCharArray() method to create an array of characters stored in the $charArray variable. After that, we used the New-Object cmdlet to create an instance of the System.Random clas...
To create a range of characters, enclose the characters in quotes. PowerShell PS>'a'..'f'a b c d e f PowerShell PS>'F'..'A'F E D C B A If you assign a character range to a string, it's treated the same assigning a character array to a string. ...
The ^ character indicates that this is the location where the string begins. With that addition, the invalid UNC path fails because the regex is looking for the first two characters to be backslashes, and in this case they aren't.Similarly, the $ symbol can be used to indicate the end ...
If the user creates a personal folder with the same name as a well-known folder and the # symbol surrounding it, you can use a backslash (\) as an escape character to specify that folder. For example, if a user creates a folder named #Notes# and you want to specify that folder inst...
+qualifies the previous character to look for one or more of the preceding element, which is one or more characters except for spaces. Nameis the literal string to find with the regular expression. The following PowerShell command uses this regular expression with the Select-String cmdlet....
要在PowerShell 中使用正则表达式,可以结合相关的命令和操作符。例如,-match操作符用于测试一个字符串是否匹配正则表达式;Select-Stringcmdlet 可在文本中搜索匹配正则表达式的行等。 例如: linux grep grep 指令后跟 “-P" 参数,则表示要使用 “PREs"