PowerShell 會限制可以讀取和變更變數、別名、函式和 PowerShell 磁碟驅動器 (PSDrives) 的存取。 PowerShell 會使用範圍規則來確保您不會對其他範圍中的專案進行意外變更。 範圍規則 當您啟動 PowerShell 時,主機 (pwsh.exe) 會建立 PowerShell Runspace。 主機進程可以有多個 Runspace。 每個 Runspace 都有自己的...
Hit Command breakpoint on 'prompt:test-cmdlet' test-cmdlet [DBG]: C:\PS> 调试远程脚本可以运行 Enter-PSSession 来启动交互式远程 PowerShell 会话,在其中可以设置断点,并在远程计算机上调试脚本文件和命令。 Enter-PSSession 允许重新连接在远程计算机上运行脚本或命令的断开连接的会话。 如果正在运行的脚本命中...
split-operator: dash split dash: one of - (U+002D) EnDash character (U+2013) EmDash character (U+2014) Horizontal bar character (U+2015) 描述:一元-split 运算符拆分由 一元表达式指定的一个或多个字符串,并在一个受约束的 1 维字符串数组中返回其子部分。 它将任何连续的空格字符组视为连续子...
Linux 和 macOS 具有操作系统在启动应用程序之前用于设置环境变量的配置文件和脚本。 将PowerShell 作为默认 (登录) shell 运行时,可以在操作系统支持的全局初始化文件中定义环境变量。 例如,在 Linux 上,可以将环境变量添加到 文件,/etc/environment或创建一个脚本来设置环境变量并将其/etc/profile.d放入 文件夹...
For more information, seeabout_Splitandabout_Join. Type Operators Use the type operators (-is,-isnot,-as) to find or change the .NET type of an object. For more information, seeabout_Type_Operators. Unary Operators Use the unary++and--operators to increment or decrement values and-for ne...
The first example is a name-value pattern, which is a common parsing task. Note the usage of theMax-substringsparameter to the-splitoperator. We want to ensure that it doesn’t matter if the value contains the character to split on. ...
It splits the $string into substrings based on the given delimiting characters (separators). In the above example, we split the $string into an array of substrings using = as a delimiting character and then took the second element of that array using an indexing operator ([1]), then ...
about_Split Describes theSplitoperator, which splits strings into substrings. about_Switch Explains how to use a switch statement to replace multipleIfstatements. about_Throw Describes theThrowkeyword, which generates a terminating error. about_Transactions ...
The~character can be used to represent the provider's home directory. If the provider doesn't have aHomelocation set, you see an error. PowerShell Cert:\>Set-Location~ Output Set-Location : Home location for this provider isn't set. To set the home location, call "(Get-PSProvider 'Cer...
third column from the end. If we were to use the-split','operator, we would create 15 new strings and an array for each line. On the other hand, usingLastIndexOfon the input string a few times and thenSubStringto get the value of interest is faster and results in just one new ...