匹配以server-开头,后面跟两位数字的字符串:'server-\d\d' 匹配包含小数点和至少两位数字精度的数字:'3\.\d{2,}'(注意这里使用\来转义小数点) 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
在$(...) 运算符的前两个用法中,指定集合的表达式是变量 $x,该变量枚举产生三个 int 值,加上 int 99。 但是,第三种情况下,表达式是对 cmdlet 的直接调用,因此不枚举结果,$a 是两个元素的数组,int[3] 和int。如果未由 PowerShell 定义操作,则会检查左操作数指定的值类型,以查看其是否有相应的 op_<...
The last logged on user was CONTOSO\jsmith 捕获存储在数字整数键中,这些键从左到右增加。 捕获1包含所有文本,直到用户名,捕获2仅包含用户名。 PowerShell复制 $Matches Output复制 Name Value --- --- 2 CONTOSO\jsmith 1 The last logged on user was 0 The last logged on user was CONTOSO\jsmith...
Accept wildcard characters:False -Filter Specifies a where clause to use as a filter. Specify the clause in either theWQLor theCQLquery language. Do not include theWHEREkeyword in the value of the parameter. Type:String Position:Named
LastName Alias Type:String Position:Named Default value:None Required:False Accept pipeline input:False Accept wildcard characters:False Applies to:Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019, Exchange Online, Exchange Online Protection ...
Gets a list of CIM classes in a specific namespace. Syntax PowerShell Get-CimClass[[-ClassName] <string>] [[-Namespace] <string>] [-Amended] [-OperationTimeoutSec <uint>] [-ComputerName <string[]>] [-MethodName <string>] [-PropertyName <string>] [-QualifierName <string>] [<Common...
private string _name = "PowerShellIsolatedStore"; /// name of store [Parameter] public string Name { get { return _name; } set { _name = value; } } When you create a parameter, you should choose whether it is positional or named. With a positional parameter you don't need to prov...
The range operator can be used to represent an array of sequential integers or characters. The values joined by the range operator define the start and end values of the range. Note Support for character ranges was added in PowerShell 6. ...
以下语句在第一个数字处拆分 here-string 中的每一行。 它使用多行选项来识别每行和字符串的开头。 0 表示 Max-substrings 参数的“返回所有”值。 仅当指定 Max-substrings 值时,才能使用多行等选项。 PowerShell $a=@' 1The first line. 2The second line. 3The third of three lines. '@$a-split...
Useful methods on the String class Introduction to Regular Expressions The Select-String cmdlet Part 2: the -split operator the -match operator the switch statement the Regex class Part 3: a real world, complete and slightly bigger, example of a switch-based parser ...