Invoke-Expressioncmdlet 可执行在使用调用运算符时导致分析错误的代码。 PowerShell PS> &"1+1"&: The term'1+1'is not recognized as a name of a cmdlet,function, script file, or executable program. Check the spelling of the name, orifa path was included, verify that the path is correct and...
PowerShell 复制 # This expression returns true if it matches a server name. # (Server-01 - Server-99). 'Server-01' -match 'Server-\d\d' 单词字符\w 字符类匹配任何单词字符 [a-zA-Z_0-9]。 要匹配任何非单词字符,请使用 \W。PowerShell 复制 ...
Select-Object 发现 产品文档 开发语言 主题 版本 PowerShell 7.5 搜索 Invoke-Expression Invoke-RestMethod Invoke-WebRequest Join-String Measure-Command Measure-Object New-Alias New-Event New-Guid New-Object New-TemporaryFile New-TimeSpan New-Variable...
Select-Object 发现 产品文档 开发语言 主题 版本 PowerShell 7.5 搜索 Invoke-Expression Invoke-RestMethod Invoke-WebRequest Join-String Measure-Command Measure-Object New-Alias New-Event New-Guid New-Object New-TemporaryFile New-TimeSpan New-Variable...
New-Module-NameMyModule-ScriptBlock{functionReturn-MrOsVersion{Get-CimInstance-ClassNameWin32_OperatingSystem |Select-Object-Property@{label='OperatingSystem';expression={$_.Caption}} }Export-ModuleMember-FunctionReturn-MrOsVersion} |Import-Module ...
Nameis the literal string to find with the regular expression. The following PowerShell command uses this regular expression with the Select-String cmdlet. help New-MgUser | Select-String '-[^ ]+Name' The PowerShell output makes it easy to find the parameters with Name. ...
Message1 Message2 When the parser sees the “;” it considers that the end of the first command and starts to parse the second command and then executes both of them. For the next examples, I’ll try to get PowerShell to run the evil command: “Write-Host Busted”. Image that I hav...
Expression -<string>or<script block> For more information, seeabout_Calculated_Properties. Type:Object[] Position:Named Default value:None Required:False Accept pipeline input:False Accept wildcard characters:False -ReferenceObject Specifies an array of objects used as a reference for comparison. ...
, or an array expression @(...) always reset $? to True. For example, (Write-Error) shows $? as True. This behavior changed in PowerShell 7, so that $? always reflects the actual success of the last command run in these expressions. $^ Contains the first token in the last li...
You’ll generate the same results as the previous examples, but the syntax is appalling. There’s lots of punctuation, lots of structure, and you have to understand a lot about what Select-Object is doing with those three hashtables. It’s basically generating custom properties using a synta...