IgnoreCase : True LineNumber : 1 Line : 64 Path : Variable:\MaximumHistoryCount Pattern : [0-9] 使用脚本块搜索字符串“Pos”的文件SelectStrCommandSample.cs。 -cmatch 运算符执行不区分大小写的模式匹配。 PowerShell 复制 Select-Str -P
variable is: True 針對後者, $PSCmdlet.WriteError() 應該改用 。 針對原生命令 (可執行檔),$?當為0 時會設定為 $LASTEXITCODE,當 為任何其他值時,則設定$LASTEXITCODE。 注意 在PowerShell 7 之前,將語句包裝在括號 (...)、子表達式語法 $(...)或陣列表達式 @(...) 中,一律將 $? 重設為 ...
drawback to this though, if we save an entire file to a variable or if we output an entire file: if the file size is large, we’ll have read the entire file into variable or output the entire file on the screen. This begins to cost us performance, as we deal with larger file ...
Set-PSReadLineOption-Colors@{ Command ='Magenta'Number ='DarkGray'Member ='DarkGray'Operator ='DarkGray'Type ='DarkGray'Variable ='DarkGreen'Parameter ='DarkGreen'ContinuationPrompt ='DarkGray'Default ='DarkGray'} 示例5:设置多种类型的颜色值 ...
Windows PowerShell reserves a few parameter names, referred to as Common parameters, which you can't use: WhatIf, Confirm, Verbose, Debug, ErrorAction, ErrorVariable, OutVariable, and OutBuffer. In addition, the following aliases for these parameter names are reserved: vb, db, ea, ev, ov...
When you run the function, the value you supply for a parameter is assigned to a variable that contains the parameter name. The value of that variable can be used in the function. The following example is a function calledGet-SmallFiles. This function has a$Sizeparameter. The function displa...
Export-ConsoleExports the names of snap-ins in the current session to a console file. Export-CounterTakes PerformanceCounterSampleSet objects and exports them as counter log files. Export-CSVConverts .NET Framework objects into a series of CSV variable-length strings and saves the strings in a ...
Note how the code uses the$using:syntax to pass the$credvariable into theForeach-Objectscriptblock. How to create backups of a file Copy-Itemis also useful to create backups for items such as configuration files or frequently modified files in a file share. This example places each ba...
<variable-namespace>- A modifier created by a PowerShellPSDriveprovider. For example: NamespaceDescription Alias:Aliases defined in the current scope Env:Environment variables defined in the current scope Function:Functions defined in the current scope ...
A PowerShell array is a component that enables the storage of more than one item in a variable or a field. For instance, to assign multiple values to a variable, use the script$a=1,2,3. PowerShell treats each item in an array as a separate element. To address each item in an arra...